Question

The area of an equilateral is 64√3cm2. Find its side.​

Answer 1

Answer:

Let the side of the equilateral triangle be a cm

area of the triangle

Root3/4 a 2 =64 root 3

⇒a 2 = 4×64× root3/root3

⇒a 2 =256

⇒a=16

perimeter of the triangle=3a=3×16=48 cm

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Answer 2

Let the side of the equilateral triangle be a cm

area of the triangle=

root3 a^2 /4 =64 root3cm^2

a^2 = 4*64*root3 / root3

a^2 = 256

⇒ a=16

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