pls help me answer the question
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Answer:
4735.5 gram
Step-by-step explanation:
Inner radius = 7 cm
outer Radius = 7cm + 0.35cm(thickness)
Volume of hollow cylinder = PI * h (R^2 - r^2)
Put values in formula= 22/7 * 30 (54.0225 - 49)
= 660/7 * 5.0225
= 473.55 Cm^3.
now
in 1 cm^3 = 10gram
so
473.55 cm^3 = 473.55 * 10
= 4735.5 Gram or 4.7355 KG
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