Question

Find the area of a circle with a radius of \color{purple}{3}3start color purple, 3, end color purple.
Either enter an exact answer in terms of \piπpi or use 3.143.143, point, 14 for \piπpi and enter your answer as a decimal.

Answer 1

Given:

(i) The radius of the circle is 3 unit.

To find:

(i) The area of the circle.

Solution:

We know that for a circle of radius 'r' units, its area is given by  

A = пr².

Similarly, for the circle of radius 3 units, its area is given as:

A = п(3)²

= 9п square units.

If we take the value of п as 3.14, we get the area as:

A = 9*3.14

= 28.26 square units

The area of the circle is 9п or 28.26 square units.

Answer 2

Answer:

16π

Step-by-step explanation:

That is what it said when you go to the hints on KA.

I promise it is right!