Question

find the area of equilateral triangle whose side is given 15 cm

Answer 1

Hey user

The Area of equilateral triangle is√3xa^2/4
=>√3x15x15/4
=>97.42cm^2.

Hope this will help u .

Answer 2

Hi ,

Let the side of an equilateral triangle

= a = 15cm

Area = (√3/4 ) a²

= ( √3 / 4 ) ( 15 )²

= ( 225√3 ) /4 square cm

= ( 225 × 1.732 ) / 4

[ √3 ≈ 1.732 ]

plz , find the product of the numerator and divide with

4 you get the answer .

I hope this helps you.

:)