Question

A=3.14r^2 and d=12 A=?

Answer 1

`\huge\boxed{113.04}`

Diameter (
`d`) is equal to twice the radius (
`r`). So, find the radius by dividing
`(12)/(2)`. The radius, or
`r`, is
`6`.

Substitute in the value.
`A=3.14*6^2`

Follow the order of operations and solve the exponent first.
`A=3.14*36`

Multiply.
`A=\boxed{113.04}`