Question

Calculate the area and the height of an equilateral triangle whose perimeter is 60 cm.​

Answer 1

Answer:

Let the side of the triangle be X

Perimeter of equilateral triangle=3×side

=60=3X

$= \frac{60}{3} = x \\ = 20 = x$

$area \: of \: equilateral \: triangle = \frac{ \sqrt{3} }{4} {a}^{2} \\ = \frac{ \sqrt{3} }{4} \times {20}^{2} \\ = \frac{ \sqrt{3} }{4} \times 400 \\ = 173.21 {cm}^{2}$

Explanation:

Hope it helps u❤

mark my answer brainliest✌