Question

a hollow Garden roller 63 cm wide with a girth of 440 cm is made of thick iron find the volume of the iron ​

Answer 1

Answer:

Circumference of girth of roller = 440 cm

2*Pi*R = 440 = R (220*7/22) = 70 cm

Outer radius = 70 cm & inner radius = 70-4 cm = 66 cm

Therefore Volume or iron = Pi [(70^2 - 60^2)]*63

= 58752 cm^3

Step-by-step explanation:

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