Question

find the length of each of an equilateral triangle having an area 9√3cm² ​

Answer 1

Its simple

Area of equilateral triangle= √3/4 a^2

9√3 = √3 /4 a^2

36 = a^2

a = √36

a= 6 cm

Remember a is the side of the equilateral triangle

Answer 2

Area of Equilateral Triangle = 9√3 cm²

Area of Equilateral Triangle :

= √3/4 a² = 9√3 cm²

= a² = 9√3 × 4/√3

a² = 9 × 4

a² = 36

(a)² = (6)²

a = 6

Hence :

Side of equilateral Triangle = 6 cm

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