Question

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

Answer 1

Answer:

Step-by-step explanation:

I do not know the answer

Answer 2

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:

$\frac{16940}{55}=308$

Hence, the circumference is 308 meter.

Now find the radius as shown:

Circumference = $2\pi r$

$2\pi r=308$

$\pi r=154$

$r=154\times \frac{7}{22}$

$r=49$

Hence, the radius of the lawn is 49 meter.