the perimeter of an equilateral triangle is 60 m the area is -
(a) 10under root 3 (b) 15 under root 3 m2 (c) 20under root 3m2 (d) 100 under root 3m2
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Perimeter of an equilateral triangle is 60 m.
=> 3a = 60
=> a = 20 m.
Area of an equilateral triangle:
=> (√3/4) * a²
=> (√3/4) * (20)²
⇒ 100√3 m²
Hope it help!
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Answer:
Answer is 15 under root 3 m2 Follow me
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