Answer:
Area of the circle with a radius of 12 meter is 1386
.
Step-by-step explanation:
Given :
Radius of a circle = 21 meter.
pi (π) = 22 over 7
To find :
Estimate the area of a circle.
Formula used :
Area of the circle = π ×
.
Explanation : We are given that
Radius of the circle = 21 meter.
pi (π) = 
Plugging the given values in above formula,
Area of the circle =
×
.
On simplification we get,
Area of the circle = 1386
.
Therefore, Area of the circle with a radius of 12 meter is 1386
.