Question

8.
A road roller makes 200 rotations in covering 2200 m.
Find the radius of the roller.
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Answer 1

Answer:

Answer =5.5

Step-by-step explanation:

When diamater is =11 then radius =11/2=5

Answer 2

Roller make 200 rotation to cover a distance =2200 m

∴200× Circumference of wheel =2200

2× 22/7 ×r×200=2200

r=2200× 1/2 × 7/2 × 1/200

r=1100× 1/200 × 22/7

r= 11/2 × 7/22

r= 7/4

=1.75 m

∴ Radius =1.75 m

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