Question

find the area of an equilateral triangle with sides 10cm

Answer 1

Formula of area of equilateral triangle is

3^(1/2)/4*side^2

Here side is 10

Therefore the area is 3^(1/2)/4*10*10 i.e. 3^(1/2)/4*100 =25 *3^(1/2)

i.e 25 root three