Area of an equilateral triangle with 5cm length? – InterviewSolution

1.

Area of an equilateral triangle with 5cm length?

Answer»

Step-by-step EXPLANATION:

AREA of EQUILATERAL TRIANGLE

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

$= \frac{ \sqrt{3} }{4} ( {5)}^{2}$

$= \frac{ \sqrt{3} }{4} \times 25$

$= 10.81 \: {cm}^{2}$

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