If the side of an equilateral triangle is 24 cm, then what is its area?
Answer & explanation
Correct answer: option 4
Area of a equilateral triangle = \(\frac{\sqrt {3}}{4}\) × (side)2
Side = 24 cm
Area of a equilateral triangle = \(\frac{\sqrt {3}}{4}\) × (24)2
= \(\frac{\sqrt {3}}{4}\) × 576 = 144$\sqrt{3}$ cm2