Question

How much bigger is the area of a circle with a radius of 5 cm than a circle with a radius of 3 cm?

Answer 1

Given:

• Circle with radius 5cm and 3 cm

To Find:

• How much bigger is the area of a circle.

Solution:

Area of circle with Radius 5cm

Area of circle = πr²

Area of circle = 22/7 × 5 × 5

Area of circle = 22/7 × 25

Area of circle = 78.54 cm²

Now,

Area of circle with Radius 3 cm

Area of circle = 22/7 × 3 × 3

Area of circle = 22/7 × 9

Area of circle = 28.27 cm²

= 78.54 - 28.27

= 50.27cm

Hence,

• Area of circle is 50.27cm more than that area of circle with radius 3cm