Question

The length of each side of an equilateral triangle having an area of 9√3cm² is

(a)8cm

(b)36cm

(c)4cm

(d)6cm​

Answer 1

Let the length of each side be a

Then, Area = 1/2 x base x height

=1/2 x a x √3a/2

9√3= √3a²/4

9=a²/4

a²=36

a=6

Answer 2

Answer:

a=36cm

Step-by-step explanation:

Area of an equilateral triangle=√3a/4

                                           where a is side

            √3a/4=9√3

                 a/4=9

            ⇒a=36

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