What is the area of a circle with a radius of 4 units?

Solution:

The area of a circle is the amount of space enclosed within the boundary of a circle.

Area of a circle = πr² square units

• where r is the radius of the circle 
• π is the constant whose value is approximately 22/7 or 3.14...

Given that radius of the circle is 4 units.

So, the area of circle =  πr² = π(4)² = 16π square units.

Thus, the area of a circle with a radius of 4 units is 16π sq. units.

What is the area of a circle with a radius of 4 units?

Summary:

The area of the circle with a radius of 4 units is 16π sq.units.