If the area of an equilateral triangle is 16 root 3 cm ^2 , Then it's perimeter is
a)48 cm
b)24 cm
c)12 cm
d)306 cm
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Answer:
(b) 24 cm
Step-by-step explanation:
Area of Equilateral Triangle = (side)²√3/4
∴ (side)²√3/4 = 16√3
∴ (side)² = 16x4
∴ (side)² = 64
∴ side = 8 cm
Perimeter of Equilateral Triangle = 3xSide
∴ P = 8cm x 3
∴ P = 24 cm
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