Question

Radius= 4cm. find the area and diameter of the circle​

Answer 1

Given:

• Radius= 4 centimeters

Diameter of the circle:

`diameter = 2r`

`d = 2 * 4`

`d = 8 \: cm`

Area of the circle:

`area = \pi {r}^(2)`

`a = \pi * {4}^(2)`

`a = 50.26548 \: {cm}^(2)`

`a = 50.27 \: {cm}^(2) \: (2 \: d.p)`

Answer 2

given:

radius= 4 cm

to find:

the area and the diameter of the circle.

solution:

diameter:

`d = 2r`

`d = 2 * 4`

`d = 8 \: cm`

therefore, the diameter of the circle is 8 centimeters.

area:

`a = \pi {r}^(2)`

`a = \pi * {4}^(2)`

`a = 50.26548 \: {cm}^(2)`

`a = 50.27 \: {cm}^(2)`

hence, the area of the circle is 50.27 square centimeters.