Question

A circular park of radius 12 cm has a road of 4 cmn width all around its outside. Find the area of the road. ​

Answer 1

Answer:

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Answer 2

Solution
verified
Verified by Toppr
1)Distance covered in one round =2π(20+2)m⇒44πm
Distance covered in 5 round =(44π×5)m=220π=691.1m
2) Area of graveled path
=π
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∣
​
(R+r)
2
−r
2

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∣
∣
∣
​

=π
∣
∣
∣
∣
​
(22)
2
−(20)
2

∣
∣
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∣
​

=263.9m
2

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