Question

If the height of an equilateral triangle is $2\sqrt{3}$ cm, then the length of its side is ____.

• A. 4 cm
• B. 6 cm
• C. 5 cm
• D. 9 cm
• E. None of these

Answer 1

The correct option is A 4 cm

Height of the equilateral triangle $=\frac{\sqrt{3}}{2}\times$ (side)
$\Rightarrow 2\sqrt{3}=\frac{\sqrt{3}}{2}\times \left(side\right)$
$\therefore$ Side of the equilateral triangle $=4cm$