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A hollow iron pipe is 21 cm long and its external diameter is 8 cm. If the thickness of the pipe is 1 cm and iron weighs 8g/cu.cm, then the weight of the pipe is A) 3.6 kgA 21 cm long cylindrical iron pipe has exterior diameter 8 A hollow iron pipe is 21 cm long and its externalWe have, length of the pipe, h = 21 cm external diameter of hollow pipe, D = 8 cm Now, external radius, R = D 2 = 8 2 = 4 cm thickness = 1 cm internal radius, r = 4 - 1 = 3 cm Now, volume of hollow metal pipe = h R 2-r 2 so, volume of hollow pipe = 22 7 × 21 4 2 - 3 2 = 66 16 - 9 = 66 × 7 = 462 cm 3 Weight of 1 cm 3 of iron = 8 g So, weight of 462 cm 3 of iron = 8 × 462 = 3696 g Hence, weight of pipe = 3696 g = A hollow iron pipe is 2.1m long and its external diameter A hollow iron pipe is 21 cm long and its externalMay 08, 2017The diameter of the pipe decreases to 0.05 m at its exit end. The exit end of the pipe is 7.82 m lower than the entrance of the pipe, and . maths. Find the mass of a hollow sphere of lead,with external diameter 10 cm and thickness 2 mm,if 1 cm^3 of lead weighs 11.4 gm. physics

A hollow iron pipe is 21 cm long &its external diameter is 8 cm. if the thickness of the pipe is 1 cm and iron weighs 8g/cm cubic units,then the weight of the pipe isA hollow iron pipe is 21 cm long &its; external diameter A hollow iron pipe is 21 cm long and its externalA hollow iron pipe is 21 cm long &its external diameter is 8 cm. if the thickness of the pipe is 1 cm and iron weighs 8g/cm cubic units,then the weight of the pipe isA hollow iron pipe is 21 cm long and its exterior diameter A hollow iron pipe is 21 cm long and its externalA hollow iron pipe is 21 cm long and its exterior diameter is 8 cm. If the thickness of the pipe is 1 cm and iron weights \(8\ g/cm^{3}\), then the weight of the pipe . is \( \Large (taking\ \pi =\frac{22}{7} ) \):

Mensuration A hollow iron pipe is 21 cm long and its exterior diameter is 8 cm. If the thickness of the pipe is 1 cm and iron weights 8 g / c m 3, then the weight of the pipe. is (t a k i n g = 22 7) A) 3.696 kgA hollow iron pipe is 21 cm long and its external Volume A hollow iron pipe is 21 cm long and its externalA hollow iron pipe is 21 cm long and its external diameter is 8 cm. If the thickness of the pipe is 1 cm and iron weighs 8g/cu.cm, then the weight of the pipe is A) 3.6 kgA hollow iron pipe is 21 cm long and its external diameter A hollow iron pipe is 21 cm long and its externalA hollow iron pipe is 21 cm long and its external diameter is 8 cm . If the thickness of the pipe is 1 cm and iron weighs 8 g/cm^3 , then the weight of pipe is 10th. Maths. Surface Areas and Volumes. Conversion of Solid from One Shape to Another.

A hollow iron pipe is 21 cm long and its external diameter is 8 cm. If the thickness of the pipe is 1 cm and iron weighs 8 g/cm3, then the weight of the pipe is A.3.6 kg. B.3.696 kg. C.36 kg. D.36.9 kg. 1. A hollow iron pipe is 21 cm long and its external diameter A hollow iron pipe is 21 cm long and its externalA hollow iron pipe is 21 cm long and its external diameter is 8 cm. If the thickness of the pipe is 1 cm and iron weighs 8 g/cm{eq}^3 {/eq}, then the weight of the pipe is {eq}\rule{1cm}{0.15mm A hollow iron pipe is 21 cm long and its externalA hollow iron pipe is 21 cm long and its external diameter A hollow iron pipe is 21 cm long and its externalA hollow iron pipe is 21 cm long and its external diameter is 8 cm. If the thickness of the pipe is 1 cm and iron weights 8g/cm cube, then find the weight of the pipe. 3.696 kg 3.686 kg

A hollow iron pipe is 21 cm long and its external diameter is 8 cm. If the thickness of the pipe is 1 cm and iron weighs 8 g/cm3, then the weight of the pipe is A.36 kg B.3.696 kg C.36.9 kg D.3.6 kgA hollow iron pipe is 21 cm long and its external diameterA hollow iron pipe is 21 cm long and its external diameter is 8 cm. If the thickness of the pipe is 1 cm and iron weighs 8 g/cm3, then the weight of the pipe is A.36 kg B.3.696 kg C.36.9 kg D.3.6 kg. Satish 19 May 923 Views 12 AnswersA hollow iron pipe is 21 cm long and its externalA hollow iron pipe is 21 cm long and its external diameter is 8 cm. If the thickness of the pipe is 1 cm and iron weights 8 g/cm 3, then the weight of the pipe is A. 3.6

A hollow iron pipe of 21 cm long and its external diameter is 8 cm . If the thickness of the pipes is 1 cm and iron weights 8g/cm^2 , then the weight of the pipe is equal to.A hollow iron pipe of 21 cm long and its external diameter A hollow iron pipe is 21 cm long and its externalA hollow iron pipe of 21 cm long and its external diameter is 8 cm. If the thickness of the pipe is 1 cm and iron weighs 8 g/cm3, then the weight of the pipe is. (a) 3.6 kg. (b) 3.696 kg. (c) 36 kg. (d) 36.9 kg. surface areas and volumes. class-8.A hollow steel tube of 2.5cm external diameter and 2.0cm A hollow iron pipe is 21 cm long and its externalJan 28, 2021The internal diameter of the tube is 11.2 cm and its length is 21 cm. The metal every where is 0.4 cm thick. Calculate the volume of the metal correct to 1 place of decimal . Physics. An iron ball of diameter 15.23cm rests on a brass ring of internal diameter 15.0cm at a

A iron pipe is 21 m long and its exterior diameter is 8cm If the thickness of the pipe is 1cm and iron weight 8g/cm3,find the weight of pipe - Math - Mensuration A hollow iron pipe is 21 cm long and its external External radius = 4 cm, A hollow iron pipe is 21 cm long and its external Volume Of Hollow Pipe = Pie*(R 2-r 2)*h. Internal Radius = External Radius- Thickness. R = 8/2 = 4.An iron pipe 20 cm long has exterior diameter equal to 25 A hollow iron pipe is 21 cm long and its externalAn iron pipe 20 cm long has exterior diameter equal to 25 cm.if the thickness of the pipe is 1 cm,find the whole surface area of the pipe. - 78714Area of Hollow Cylinder - Curved and Total Surface Area of A hollow iron pipe is 21 cm long and its external= \[100631.49 cm^{2}\]. Example 2 A hollow cylinder copper pipe is 21dm long. Its outer diameter and inner diameter are 10cm and 6cm respectively. Find the volume of copper used in manufacturing the pipe. Solution Given that \[\text{The height of the cylindrical pipe is h} = 21 dm = 210 cm\] \[\text{Thus, External radius}, R = \frac{10}{2 A hollow iron pipe is 21 cm long and its external

A hollow cylinder copper pipe is 21cm long. It's the outer diameter and the inner diameter is 10cm and 6cm respectively. Find the volume of copper used in manufacturing the pipe. (Answer=340 cubic. cm)Determine the metal required to make a 21 m long pipe if A hollow iron pipe is 21 cm long and its externalA hollow iron pipe is 21 cm long and its external a iron pipe is 21 m long A man is standing on the 8m long shadow of a 6 m long pole A metal pipe with an outer diameter of 28mm and inner diameter of the area of square field is 5184 The area of a square field is 8281 m2( meter square) Find the length of the area of a square field is 60025 m A hollow iron pipe is 21 cm long and its externalQ. A hollow iron pipe is 21 cm long and A hollow iron pipe is 21 cm long and its external - Staff A hollow iron pipe is 21 cm long and its externalDec 01, 2012Q. A hollow iron pipe is 21 cm long and its external diameter is 8 cm. If the thickness ofthe pipe is 1 cm and iron weighs 8 g/cm 3 , then the weight of the pipe

Jul 10, 2018A hollow cylindrical pipe is 21 dm long. Its outer and inner diameters are 10 cm and 6 cm respectively. Find the volume of the copper used in making the pipe. Solution Length (Height) of hollow cylindrical pipe = 21 dm = 210 cm Inner diameter = 6 cm Outer diameter = 10 cm. Question 6.RD Sharma Solutions for Class 8 Chapter 22 Mensuration A hollow iron pipe is 21 cm long and its external= 9240 cm 3. 5. A hollow cylindrical pipe is 21 dm long. Its outré and inner diameters are 10 cm and 6 cm respectively. Find the volume of the copper used in making the pipe. Solution We have, Length of cylinder = 21 dm = 210 cm. Outer diameter = 10 cm. Outer radius, R = 10/2 = 5cm. Inner diameter = 6 cm. Inner radius, r = 6/2 = 3cmSolved A Hollow Iron Pipe Is 21 Cm Long And Its External A hollow iron pipe is 21 cm long and its externalA hollow iron pipe is 21 cm long and its external diameter is 8 cm. If the thickness of the pipe is 1 cm and iron weighs 8 g/cm3, then the weight of the pipe is:

A hollow iron pipe is 21 cm long and its external diameter is 8 cm. If the thickness of the pipe is 1 cm and iron weighs 8 g/cm3, then the weight of the pipe is:Some results are removed in response to a notice of local law requirement. For more information, please see here.Tricks to solve Volume and Surface Area Problems - SchoolMay 02, 2018A hollow iron pipe is 21 cm long and its external diameter is 8 cm. If the thickness of the pipe is 1 cm and iron weighs 8 g/cm3, then the weight of the pipe is A. 3.6 kg

A hollow iron pipe is 21 cm long and its external diameter is 8 cm. If the thickness of the pipe is 1 cm and iron weighs 8 g/cm 3 , then the weight of the pipe is [A].Volume and Surface Area - Aptitude Questions and A hollow iron pipe is 21 cm long and its external diameter is 8 cm. If the thickness of the pipe is 1 cm and iron weighs 8 g/cm 3 , then the weight of the pipe is [A].Volume and Surface Area - Aptitude Questions and AnswersA hollow iron pipe is 21 cm long and its external diameter is 8 cm. If the thickness of the pipe is 1 cm and iron weighs 8 g/cm 3 , then the weight of the pipe is A.

A hollow iron pipe is 21 cm long and its external diameter is 8 cm. If the thickness of the pipe is 1 cm and iron weighs 8 g/cm3, then the weight of the pipe is A. 3.6 kg B. 3.696 kg C. 36 kg D. 36.9 kg Answer Option B. Explanation External radius = 4 cm, Internal radius = 3 cm. Volume of iron = 22 x [(4) 2 - (3) 2] x 21 cm 3 7 = 22 x 7 A hollow iron pipe is 21 cm long and its externalVolume and Surface Area Important Formulas LearnFrenzyQuestion A hollow iron pipe is 21 cm long and its external diameter is 8 cm. If the thickness of the pipe is 1 cm and iron weighs 8 g/cm 3, what is the weight of the pipe? Solution External radius R = 4 cm, Internal radius r = (4 1) cm = 3 cm. Volume of the pipe = Total solid volume Volume of hollow part = ?(R 2 r 2)h = 22 / 7 x A hollow iron pipe is 21 cm long and its externala hollow iron pipe, which is 14cm long and. has its A hollow iron pipe is 21 cm long and its externalNov 24, 2014a hollow iron pipe, which is 14cm long and. has its external diameter 10cm. if the thickness of the pipe is 2 cm and iron weighs 1g/ cm3, find the weight of the pipe? Anybody can tell answer for this question within 5 minutes.

A hollow cylindrical tube, open at both ends is made of iron 1 cm thick. If the external diameter is 14 cm and the length of tube is 70 cm, Find the cost of painting its inner surface at the rate of Rs. 4 per cm 2. The diameter of a roller 1 m long is 56 cm.an iron pipe 20 cm long has exterior diameter 25 cm if the A hollow iron pipe is 21 cm long and its externalA hollow cylindrical tube, open at both ends is made of iron 1 cm thick. If the external diameter is 14 cm and the length of tube is 70 cm, Find the cost of painting its inner surface at the rate of Rs. 4 per cm 2. The diameter of a roller 1 m long is 56 cm.