Question

area of equilateral triangle is 16√3 then the perimeter of this triangle is ........ 

12 cm

16 cm

24 cm

48 cm

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Answer 1

Answer:

24

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Answer 2

Answer:

(b) Given, area of an equilateral triangle = 16√3 cm2

Area of an equilateral triangle = √3/4 (side)2

√3/4(Side)2 = 16√3 ⇒ (Side)2 = 64

⇒ Side =8 cm

[taking positive square root because side is always positive]

Perimeter of an equilateral triangle = 3 x Side= 3 x 8 = 24 cm

Hence, the perimeter of an equilateral triangle is 24 cm.