If the circumradius of an equilateral tr

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Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Mensuration: 2D

Question:

If the circumradius of an equilateral triangle is 18 cm, then the measure of its in-radius is:

Options:

9 cm

3 cm

10 cm

12 cm

Correct Answer:

9 cm

Explanation:

We know that,

The ratio of circumradius and inradius in equilateral triangle = 2 : 1

So if the circumradius = 18 then,

the inradius = 9.