3. A circular plot has a radius of 56 m. A 7 m wide road runs on the inside of the
plot around it. Find the area of the road. Also find the cost of paving the road at
350 per
per m2
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5
Answer:
2310m²
Step-by-step explanation:
Radius of circular ground = 56m
Width of road inside = 7m
Radius of inner circle = 56− 7 = 49m
Hence area of road = Area of outer − Area of inner
= π(56)² − π(49)²
= π(3136−2401) = 22/7 × 735
=2310m²
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