A garden roller is 20 cm in diameter and 77 cm in width . What area in m^2 will be covered in 10 revolution .
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Step-by-step explanation:
radius = diameter÷2
20÷2=10cm
height = 77cm
in one revolution
using csa of cylinder
csa= 2πrh
2×22/7×10×77
44×10×11
4840cm/s
in metre 4840÷100=48.4m/s
in 10 revolutions
48.4×10=484m/s
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r means radius
d means diameter
h mean height
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