Question

one side of an equilateral triangle is 30 cm .its area is ...

Answer 1

We have formula for eq.triangle area

√3a^2/4

By substituting...

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Answer 2

Given: One side of an equilateral triangle is 30cm.

To find: The area of the triangle.

Answer:

Formula to find area of an equilateral triangle = √3a^2/4, where a is the side.

a = 30cm

Substituting the value of a (given) in the formula,

√3*(30)^2/4

= √3*30*30/4

= √3*15*15

= 225√3cm^2

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