Question

A circle has radius 3cm. Work out the area of the circle. Give your answer in terms of π

Answer 1

Answer :

• Area of circle is 28.28 cm²

Given that :

• Radius is 3cm

To find :

• Area of circle

Solution :

To find the area of circle we need to use the formula of area of circle,

We know that,

• Area of circle = πr²

where,

• r is radius

Given, Radius is 3cm

➨ Area of circle = πr²

➨ Area of circle = 22/7 × (3)²

➨ Area of circle = 22/7 × 3 × 3

➨ Area of circle = 22/7 × 9

➨ Area of circle = 28.28 cm²

Hence, Area of circle is 28.28 cm².

More Explanation :

• Circumference of circle = 2πr
• Area of circle = πr²