Question

What is the area of the circle with 2.5cm radius round to the nearest tenth

Answer 1

19.6 cm²

Explanation:

Area of circle is πr²

A = πr²

= π(2.5)²

A = 19.63495....

Answer 2

A ≈ 19.6 cm

Explanation:

In order to find the area of this circle, we are going to apply the formula:

• 
  `\bf{A=\pi r^2}`

where:

• r = radius

Put in the values:

`\bf{A=\pi*2.5^2}`

`\bf{A=\pi*6.25}`

`\bf{A\approx19.6\:cm}`