Question

the perimeter of equilateral is 30 cm.. the circumference of its incircle is 88 cm. the area of triangle??

Answer 1

U don't need the circle......eq.triangle all sides are equal.....therefore , a=10cm

Substitute in ar.(eq.triangle)=√3a2/4

We will get ar.=25√3 cm2

Answer 2

area of eq triangle = √3/4 x side ²
side = 10cm (30/3)
so 1.73/4 x 10²
= 43.25 cm²