PQR is an equilateral triangle with sides 2\(\sqrt{3cm}\). calculate its height
The correct answer is: B
Explanation
By Pythagoras theoremh2 = (2\(\sqrt{3})^2 - (\sqrt{3})^2\)
= 22(\(\sqrt{3})^2 - 3\)
4(3) - 3 = 112 - 3
h2 = 9
h = \(\sqrt{9}\)
= 3cm