Question

What's the area of a circle with a 74ft diameter use 3.14 for pie

Answer 1

Area of a circle is given by

`\text{A} = \pi * r^2`

We need to know the radius

`\text{r} = \frac{\text{d}}{2}`

`\text{r} = \frac{\text{74}}{2}`

`\text{r} = 37 \ \text{mm}`

The radius is 37 mm and pi = 3.14

`\text{A} = 3.14 * (37)^2`

`\text{A} = \boxed{\bold{4298.66 \ \bold{mm}^2}}`