Question

What is the area of an equilateral triangle with sides of 4?

Answer 1

The formula for area of an equilateral triangle is:
`sqrt3/4 (side)^2`

the side =`4 cm`
(assuming the unit to be in cm)

area = `sqrt3/4 (side)^2`
`=sqrt3/cancel4xx cancel4 xx 4`
`= 4sqrt3`
`= 4 xx 1.732`
area `approxcolor(blue)(6.93cm^2`