if area of an equilateral triangle is 64sqrt3 cm^2,find the perimeter and height of triangle (by heron's formula)
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if area of an equilateral triangle is 64sqrt3 cm^2,find the perimeter and height of triangle (by heron's formula)
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Answer:
perimetre: 48
Step-by-step explanation:
Let the side of the equilateral triangle be a cm
area of the triangle
4
3
a
2
=64
3
⇒a
2
=
3
4×64×
3
⇒a
2
=256
⇒a=16
perimeter of the triangle=3a=3×16=48 cm