Find the area of an equilateral triangle whose each side is 18 m
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Answer:
Area of triangle = 140.292 m^2
Step-by-step explanation:
Area of equilateral ∆ :
= √3 side^2
4
= √3 × 18× 18
4
= √3 × 9 × 9
= 81√3
= 81 × 1.732
= 140.292 m^2
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