Question

the diameter of a circular parknis 84m. A 3.5 - wide road runs on the out side around it.find the cost of contening the road at rs. 200 per m ^2​

Answer 1

Answer:

The cost of constructing road is Rs.19245.

Step-by-step explanation:

Given : The diameter of a circular Park is 84 m. A 3.5 m wide toad runs on the outside around it.

To find : The cost of constructing the road at rupees 20 per square meter?

Solution :

Diameter of the park = 84 m

Let the radius of the park be x=42 m

Radius of outer circle y = 42 +3.5 =45.5 m

Area of road is

The area of the road is 962.25 meter square.

Rate = Rs.20 per square metre.

Cost of construction is

Therefore, The cost of constructing road is Rs.19245.

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