Question

Circular pillar has diameter 19 feet.

Using the approximate
π
≈
3.14
, approximate the circumference and area

Answer 1

The area is 283.4
`feet^2` and the circumference is 59.7 feet

What is the circumference and the area of a circle?

The entire length of a circle's perimeter, or the distance around the circle, is its circumference. It is comparable to calculating a polygon's perimeter, but only for circular shapes. Any straight line that passes through the center of the circle can be used to calculate the circumference by measuring the distance around it.

Radius = 19 feet/2

= 9.5 feet

Area = π
`r^2`

= 3.14 *
`(9.5)^2`

= 283.4
`feet^2`

Circumference = 2πr

= 2 * 3.14 * 9.5

= 59.7 feet