If radius of the circumcircle of an

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Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Mensuration: 2D

Question:

If radius of the circumcircle of an equilateral triangle is 40 cm; then the measure of radius of its incircle is:

Options:

17 cm

21 cm

22 cm

20 cm

Correct Answer:

20 cm

Explanation:

In equilateral triangle the ratio of circumradius to inradius is 2 : 1.

Therefore,

If Circumradius = 40 cm, then inradius = 20 cm