Question

find the height of equilateral triangle whose side is the 15 cm​

Answer 1

Step-by-step explanation:

area =225×3^1/2/4

225×3^1/2/4=1/2 ×15×h

h=15×3^1/2/2

Answer 2

Step-by-step explanation:

$\mathfrak{\huge{\blue{ANSWER:-}}}$

$area = \frac{ \sqrt{3} }{4} {a}^{2} \\ \\ = \frac{ \sqrt{3} }{4} \times 15 \times 15 \\ \\ \frac{225 \sqrt{3} }{4} \: \: \: {cm}^{2} \\ \\ area \: of \: triangle = \frac{1}{2} \times b \times h \\ \\ \frac{225 \sqrt{3} }{4} = \frac{1}{2} \\ \\ = \frac{1}{2} \times base \: \times height \\ \\ \frac {225 \sqrt{3}}{4} {cm}^{2} = \frac{1}{2} \times 15 \times height \\ \\ height \: = \frac {51.96}{4} \\ \\ height \: = 13 {cm}$