Question

find the area of an equilateral triangle whose side is 5√3 cm​

Answer 1

$area \: of \: an \: equilateral \: triangle = \frac{ \sqrt{3} }{4} \times { {a}^{2} }$

Here,

$a = 5 \sqrt{3} \: cm$

$= \frac{ \sqrt{3} }{4} \times (5 \sqrt{3} ) {}^{2} \\ \frac{ \sqrt{3} }{4} \times 25 \times 3 = \frac{75 \sqrt{3} }{4}$

$area \: of \: an \: equilateral \: triangle = \frac{75 \sqrt{3} }{4}$

Hope this will be helpful

Answer 2

Answer:

the answer is 25root3/12

Step-by-step explanation: