Question

Area of an equilateral triangle with 4.5 cm length?

Answer 1

Step-by-step explanation:

Area of equilateral triangle

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

$= \frac{ \sqrt{3} }{4} ( {4.5)}^{2}$

$= 8.75 \: {cm}^{2}$

Answer 2

$\huge\fcolorbox{grey}{pink}{Answer}$

A=√3/4a²

= √3/4 (4.5)²

=8.75cm²