Question

The radius of a circle is 49m. There is
7m wide road round, it on the
outside. Find the area of the road?​

Answer 1

Step-by-step explanation:

Radius of the road = Radius of circle + 7m

Therefore, Radius of road = 56m

Area of circle =

$\pi \: {r }^{2}$

22/7 × 49 × 49

= 7546 m2

Area of circular road = 22/7 × 56 × 56

= 9856m2

Area of the road (only) = Area of circular road - Area of circle

= 9856 - 7546

= 2310m2