Question

How to find the area of an incircle and the circumcircle with the area of a triangle?

Answer 1

Answer:

Find the centroid of the triangle

Join it with a vertice

Thus the radius of the outer circle is obtained

Now draw a perpendicular from the centroid to the base

Thus the radius of the inner circle is obtained

Now use pi×r×r to get the areas

Step-by-step explanation:

Answer 2

Answer:

$2\pi \: r$

2πr