The area of an equilateral triangle is 144 root 3 cm square; Find its perimeter
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Ans : Area of equilateral triangle : √3a^2/4
=> √ 3a^2/4 = 144 √3
=> a^2 = 144×4 =576
=> a = √576
side is 24 cm
Perimeter of triangle
= 24×3
=72 is answer
=> √ 3a^2/4 = 144 √3
=> a^2 = 144×4 =576
=> a = √576
side is 24 cm
Perimeter of triangle
= 24×3
=72 is answer
anwesha2672:
How?
understood ??
Answered by
6
Answer:
Step-by-step explanation:
Area of an equilateral triangle= √3*a²/4
Area = 144√3
Side=24cm
Perimeter=24*3=72cm
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