Question

Find the area of an equilateral triangle with a perimeter of 24in.

Answer 1

Answer:

Step-by-step explanation:

$p=24,\ b=\frac{p}{3}=8\\ \\ h=\sqrt{64-16},\ h=\sqrt{48}\\ \\ A=\frac{bh}{2}\\ \\ A=4\sqrt{48}in^2\\ \\ A=16\sqrt{3}in^2\\ \\ A\approx 27.7in^2$