Question

one of the side of an equilateral triangle is of length 12 cm find its area of triangle​

Answer 1

Area of equilateral triangle
$= \frac{ \sqrt{3} }{4} \times {(side)}^{2} \\ = \frac{ \sqrt{3} }{4} \times 144 \\ = 36 \sqrt{3}$

Answer 2

Answer:

Area of equilateral triangle =√3÷4(side)^2

so area=√3÷4(12×12) cm^2

= √3×36 cm^2

= 36√3 cm^2