Question

the area of an equilateral triangle is 173.2 m sq . find the perimeter. ( hint sqroot 3 = 1.732)

Answer 1

Answer:

Step-by-step explanation:

Area of eq. triangle = root3 a^2/4

173.2= root 3 a^2/4

a^2= 173.2×4/root3

a^2= 173.2×4/1.732 (root 3 = 1.732)

(On removing the points)

a^2= 1732×4×1000/1732×10

a^2= 4000/10

a^2= 400

a= 20

Side of eq. triangle = 20m

So,Perimeter of eq. triangle = 3a

= 3×20

= 60m (ans)

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