Question

Find the area of an equilateral triangle whose value is 18 cm​

Answer 1

Answer:

$18 + 18 + 18 = 18 \times 3 = 54$

Step-by-step explanation:

I ain't sure but it might help you out:D

Answer 2

Answer:

140.3 cm²

Step-by-step explanation:

area of an equilateral triangle

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

where a is the side of the triangle

$= \frac{ \sqrt{3} }{4} \times {18}^{2} \\ = 140.3 \: cm {}^{2}$