Question

if the radius of the circumcircle of an equilateral triangle is 8 cm, then the measure of radius of its incircle is?​

Answer 1

Answer:

4cm

Step-by-step explanation:

radius of circum circle is 8cm so radius of in circle is 4cm by using 2 is to1 in a triangle property

Answer 2

The radius of its incircle is 4 cm.

Step-by-step explanation:

Since we have given that

Radius of circumcircle of an equilateral triangle = 8 cm

We need to find the radius of its incircle.

Since we know that

In equilateral triangle,

Radius of circumcircle = 2 × Radius of incircle

So, it becomes,

$8=2\times r\\\\\dfrac{8}{2}=r\\\\r=4\ cm$

Hence, the radius of its incircle is 4 cm.

# learn more:

If the radius of a circumcircle of an equilateral triangle is 6 cm ,then find the radius of its incircle.

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