Question

Find the area of equilateral triangle with side a

Answer 1

a^2 √3/4

Explanation:

its a^2√3 divided by 4

Answer 2

0.5a√(a^2 - (0.5a)^2).

Explanation:

The height of the triangle is √(a^2 - (0.5a)^2) units (By The Pythagoras Theorem) and the base is a units long.

The area = 0.5 * base * height

= 0.5a√(a^2 - (0.5a)^2).