PQR is an equilateral triangle with sides 2(sqrt{3cm}). calculate its height

PQR is an equilateral triangle with sides 2(sqrt{3cm}). calculate its height

Correct Answer: Option B

Explanation

By Pythagoras theorem
h² = (2(sqrt{3})^2 – (sqrt{3})^2)
= 2²((sqrt{3})^2 – 3)
4(3) – 3 = 112 – 3
h² = 9
h = (sqrt{9})
= 3cm