A road which is 7 m wide surrounds a circular park whose circumference is 352 m. Find the area of the road.
 

Asked by Sakshi | 9 months ago |  120

1 Answer

Solution :-

Width of the road = 7 m
Answers Of RD Sharma Class 10 Chapter 15 Areas related to Circles

Circumference of the park = 352 m

Let r be the radius, then 2πr = 352

Circumference of circular park = 352 m

= 2πr=352 where r is the radius of the park

=2×\( \dfrac{22}{7}\)×r=352

= r=56 m

Now, outer radius =56 m+7 m=63 m

Area of the road =π×632−π×562

=π(632−562)

=\( \dfrac{22}{7}\)×(63+56)×(63−56)

=227×119×7=2618 m2

Answered by Sakshi | 9 months ago

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