Question

The inradius of an equilateral triangle is 13 cm. What will be the radius of the circumcircle of this triangle?

• A. 15 cm
• B. 26 cm
• C. 30 cm
• D. None of these

Answer 1

Answer:

B. 26 cm

In an equilateral Triangle: Circumradius = 2 × Inradius ⇒ R = 2 × r R = 2 × 13 = 26 cm