Question

An equilateral triangle with side 4 has an area of _____ cm2 . a) 12√3 b) 16√3 c) 5√3 d) 4√3​

Answer 1

Answer:

We know

Area of an Equilateral triangle=

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

where a= one side

therefore if one side is 4 cm,then

$\frac{ \sqrt{3} }{4} \times {4}^{2} \\ \frac{ \sqrt{3} }{4} \times 16 \\ \sqrt{3} \times 4 \\ = 4 \sqrt{3}$

therefore the correct answer is option d) 4√3