Question

Find the area of an equilateral triangle having each side 4 cm.

 

Answer 1

Area of an equilateral triangle having each side a cm is given by 

`A=sqrt(3)/4a^2`

Area of the given equilateral triangle having each equal side equal to 4 cm is given by

a = 4 cm

`A= sqrt(3)/4 (4)^2`

`A=sqrt(3)/4 xx 16`

`A = 4 sqrt(3)  cm^2`