Question

find the area of equilateral triangle each whose side measures 20 CM

Answer 1

side = 20cm
area of equilateral triangle =√3/4(side)^2
= √3/4*(20)^2
=√3/4*400
=√3*100cm^2

Answer 2

area of equilateral triangle = root 3/4 side .Square
=100 root 3