Question

Complete the table.

Diameter Radius Area Circumference 85 . 132cm

Answer 1

Diameter= 27.09835723

Radius= 13.54917862

Area= 576.7343369

Explanation:

Circumference =π × diameter

So diameter = circumference ÷ π

Radius= half of diameter

Area = π times radius squared

Answer 2

`lets \: \: \: find \: \: \: the \: \: radius\\ 2\pi \: r = 85.132 \\ (2\pi \: r)/(2\pi) = (85.132)/(2\pi) \\ r = 13.55cm`

`lets \: \: \: find \: \: \: the \: \: area \\ \pi {r}^(2) \\ \pi * (13.55 )^(2) \\ = 576.80 {cm}^(2)`

`lets \: \: \: find \: \: \: the \: \: \: diameter \\ d = 2r \\ d = 2 * 13.55 \\ d = 27.1cm`