Question

A land is in the shape of a semicircle with radius 10m. How much wire is needed to fence the plot?

Answer 1

Given:

A land is in the shape of a semicircle with radius 10m.

To find:

How much wire is needed to fence the plot?

Solution:

From given, we have,

A land is in the shape of a semicircle with radius 10m.

The length of the wire is equal to the circumference of the semicircle.

So, the formula for calculating the circumference of the semicircle is,

C = πr

substitute the given value in the above equation to find the value of the wire is needed to fence the plot.

So, we get,

C = 22/7 × 10

C = 31.42

Hence the wire needed to fence the plot is 31.42 m