PQR is an equilateral triangle whose side is 10 cm. What is the value (in cm) of the inradius of triangle PQR?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 5/√3
Inradius of an equilateral triangle = a/2√3
= 10/2√3
= 5/√3 cm