Question

What is the area of an equilateral triangle with sides of 10?

Answer 1

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

the side =`10 cm`
(assuming the unit to be in cm)

area = `sqrt3/4 (side)^2`
`= 0.433 xx (10)^2`
`= 0.433 xx 100`

area `=color(blue)(43.3 cm^2`