A circular park of radius 20 meters has a road 5 meter wide running round it. Find the cost of metalling the road at ₹ 14 per sq. m.
Answers
Answered by
1
Here is the answer hope it helps u...... mark brainliest
Attachments:
Answered by
10
Answer:
₹ 9,900
Step-by-step explanation:
Radius of inner circle = 20m
Radius of outer circle = 20 + 5 = 25m
Area of Road :
= Area of outer circle - Area of inner circle
= πR^2 - πr^2
= π (R^2 - r^2)
= 22/7 (25^2 - 20^2)
= 22/7 (625 - 400)
= 22/7 * (225) m^2
Cost per m^2 = ₹14
Total cost:
= 14 * 22/7 * 225
= 2 * 22 * 225
= ₹ 9,900
pls mark me as the brainlist....❤️
also pls follow me...
Similar questions