Question

What is the area of an equilateral triangle whose sides measure 10?

Answer 1

`25sqrt(3)\ "unit"^2`

Explanation:

Area of equilateral triangle is given by the formula

`"A" = sqrt(3)/4("side length")^2`

`"A" = sqrt(3)/4 × ("10 unit")^2 = 25sqrt(3)\ "unit"^2`