Question

A circular ground has a radius of 56cm. A 7cm wide road runs on the outside around it. Find the area of the road​

Answer 1

⭐GIVEN:

• Radius(r) of a circular ground=56cm.

• Radius (R) of a road runs outside around it= 7cm.

⭐TO FIND:

• Area of the road=?

⭐$OLUTION:

• Area of a circle=πr²......... (Formula)

Area of a circular ground=πr²

=22/7×(56) ²

=22/7×56×56

=22×8×56

=176×56

=9856

Therefore, Area of a circular ground is 9856 cm².

Now,

Area of a circular ground including road

=πr²

=22/7×63×63

=12474cm²

Area of a road = Area of a circular ground including the road-area of a circular ground.

=12474-9856=2618

Therefore, The area if the road is 2618 cm².

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