Q23
If the incentre of an equilateral triangle lies inside the triangle and its radius in 3 cm, then the side of the equilateral triangle is
A.
9 cm
B.
6 cm
AnswerC.
3 cm
D.
6 cm
Answer: Option B
Solution
Answer: Option B
Solution:
Inradius = (a = side of Δ)3 =
a = 6 cm