Question

if a side of equilateral triangle is 15cm. find its area.​

Answer 1

Step-by-step explanation:

$area = \frac{ \sqrt{3} }{4} {a}^{2} \\ area \: = \frac{ \sqrt{3} \times 15 \times 15 }{4} \\ area \: = 97.4278579$

Answer 2

Hey mate ,

Area of equilateral triangle = √3/4 × side ^2

= √3/4 ×15×15

= 225√3/4

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