Answer:
4[tex]\sqrt{3\\}[/tex] ≈ 6.93 cm²
Step-by-step explanation:
The area (A) of an equilateral triangle is calculated as
A = [tex]\frac{s^2\sqrt{3} }{4}[/tex] ← s is the side length
here s = 4, thus
A = [tex]\frac{4^2\sqrt{3} }{4}[/tex]
= [tex]\frac{16\sqrt{3} }{4}[/tex]
= 4[tex]\sqrt{3\\}[/tex] ≈ 6.93 cm²