Question

A road roller has a diameter of 84 cm and length 2m. How much area would it cover in 10 revolutions

Answer 1

Answer:

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Answer 2

Answer:

Step-by-step explanation:

Dia =84cm

Radius=42cm=.42m

Length of roller= 2m

Circumference=2 * π * 42=264cm=2.64 m

Area covered= No. of revolns * area covered in 1 revolns. (2 *π * . 42 *2)

=10 * 2* π* . 42 * 2=52.8 m * m(m^2)