Question

the cost of decorating the circumference of a circular lawn of a house at the rate of ₹55 per metre is₹16940. what is the radius of the lawn

Answer 1

Answer:

The radius of the lawn is 49 meter.

Step-by-step explanation:

Consider the provided information.

The cost of of decorating the circumference of a circular lawn of a house at the rate of rupees 55 per meter is rupees 16940.

First find the circumference as shown:

Hence, the circumference is 308 meter.

Now find the radius as shown:

Circumference =

2 pi r

2 pi r = 308

pi r = 154

r= 154 x 22/7

r= 49

Hence, the radius of the lawn is 49 meter.