# About a circle, the radius which is equal 9 roots from 3 is described in the correct hexagon. Find the area of a hexagon and the area of the circle described about this hexagon

Yulian

254

of r=a√3/2 a=2r / √ 3=2*9√3 / √ 3=18

the Area of a hexagon

of S=3a ² √3/2=3*324√3/2=486√3

of Radiusokruzhnosti, described around the correct hexagon, is equal to its party

circleS = π r ² =3.14*18 ² =1017.36

222

Answer add
Nadya

### Other questions in the section - maths

Yuriy

Kak changes the sum of two numbers if a) to the first to add

2020-10-18 04:24:39

Meonval

Some number was increased twice, the result was reduced by 3 times. It turned

2020-10-18 04:24:39

Ganis

In the museum of 280 pictures. From them landscapes are 3 times more, than

2020-10-18 04:24:39

Vladilen

1) Divide numbers into two groups 15, 6, 1/2, 275, 3/8, 7/4, 12, 3895,

2020-10-18 04:24:39

Ariumand

The father left in inheritance to 3 sons of 7 chests full of gold,

2020-10-18 04:24:39