Question

2.
Find the area of the equilateral triangle having each side 4 cm.
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Answer 1

Answer:

Heya mate...

$\frac{ \sqrt{3} }{4} a {}^{2}$

so put the value of a = 4cm ...

=> √3/4 × 4 × 4 cm²

answer = 4 √3 cm ²

Answer 2

Area of equilateral triangle is √3/4× (side)^2

√3/4× (4)^2

√3/4 ×16

= 4√3 cm^2

Hope it helps you