Question

Find the area of Diameter of 8.42

Answer 1

`A\ =55.65 \: square units`

step-by-step explanation :

Area of a circle with diameter 8.42

The area of a circle is given as

`A\ =\pi ({ (d)/(2) })^(2)`

where d is the diameter.

Substituting into the formula :

`d = 8.42 \: unts \:`

`\pi = 3.14`

This implies that,

`A\ =3.14 * ({ (8.42)/(2) })^(2)`

We simplify to obtain :

`A\ =55.65 \: square units`

Answer 2

55.68 square units

Explanation:

To fond the area of a circle of diameter 8.42, we are using the area formula for a circle:

`A=(1)/(4) \pi d^(2)`

where

`A` is the area of the circle

`d` is the diameter of the circle

We know from our problem that the diameter of our circle is 8.42, so
`d=8.42`. Replacing the values in our formula:

`A=(1)/(4) \pi d^(2)`

`A=(1)/(4) \pi (8.42)^(2)`

`A=55.68` square units

We can conclude that the area of a circle of diameter of 8.42 units is 55.68 square units.