The side of an equilateral triangle is 24 cm. What will be the radius of in circle of this equilateral triangle?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. 4√3 cm.
The side of an equilateral triangle is 24 cm
In radius of equilateral triangle = (side/2√3 ) ---- (1)
Using equation (1), we get
⇒ In radius of equilateral triangle = (24/2)√3
⇒ 12/√3 × (√3/√3)
= 4√3cm