Question

If equilateral triangle ABC with side AB=AC=6cm circle drawn inside a circle of radius 9cm. Find the area of triangle

Answer 1

Area of triange = (Under root 3 / 4 ) * side square
                        = 6√3 / 4
                        = 3√3 / 2

Answer 2

Answer:

$\text{Area of equilateral triangle is }9\sqrt3 cm^2$

Step-by-step explanation:

Given the equilateral triangle ABC with side AB=AC=6cm drawn inside a circle of radius 9cm.

we have to find the area of triangle.

$\text{Area of triangle= }\frac{\sqrt3}{4}a^2$

$=\frac{\sqrt3}{4}6^2$

$=\frac{\sqrt3}{4}\times 36$

$=9\sqrt3$

Hence, $\text{area of equilateral triangle is }9\sqrt3 cm^2$