Question

An equilateral triangle is inscribed in a circle of radius 10 cm. Find: (a) the area of the triangle. (b) the area shaded.

Answer 1

Can someone help?

Answer 2

its easy

Answer 3

equilateral triangle's all sides are equal and angles are equal

Answer 4

simple geometry

Answer 5

use "r" to find the height of the triangle

Answer 6

or there is a formula
you can find a by radius
that's r =(root 3/3) *a

Answer 7

\[r = (\sqrt{3}/3)/a\]

Answer 8

no. r is not the height. r = (2/3)*h

Answer 9

\[A =(\sqrt{3}/4) x a ^{2}\]
that's for area

Answer 10

sorry that's root 3 by 4
multiplied by a square

Answer 11

Haha thanks guys