Question

A circle has a radius of 3.7ft what is the area of the circle 100 points

Answer 1

A = 43.01

Explanation:

To find the area of a circle use this formula

• A=πr2

"r" representing the radius

Plug in . .

• A = π × 3.7² = 43.0084
• A = 3.14 × 13.69 = 43.0084

Round

A = 43.01

Answer 2

43.0 ft² (nearest tenth)

Explanation:

`\boxed{\begin{minipage}{3.9 cm}\underline{Area of a circle}\\\\$A=\pi r^2 $\\\\where $r$ is the radius.\\\end{minipage}}`

Given:

• r = 3.7 ft

Substitute the given radius into the formula for area:

`\implies A= \pi (3.7)^2`

`\implies A = 13.69\pi`

`\implies A = 43.008403427644...`

Therefore, the area of the circle is 43.0 ft² (nearest tenth).