Practicing Success
The perimeter of an equilateral triangle is 36 cm. What is the area of this triangle? |
$96 \sqrt{3}$ cm2 $36 \sqrt{3}$ cm2 $24 \sqrt{3}$ cm2 $27 \sqrt{3}$ cm2 |
$36 \sqrt{3}$ cm2 |
Given that, The perimeter of a equilateral triangle = 36 and we know the perimeter = 3(side) = 3(side) = 36 = side = 12 So the area of a equilateral triangle = \(\frac{\sqrt {3}}{4}\) × (side)2 = \(\frac{\sqrt {3}}{4}\) × (12)2 = $36 \sqrt{3}$ cm2 |