Find the area of equilateral triangle with side a

Question

Mathematics

Erica Chan

21 February, 13:26

Find the area of equilateral triangle with side a

+5

Answers (2)

Know the Answer?

Anton Vazquez · Answer 1

a^2 √3/4

Step-by-step explanation:

its a^2√3 divided by 4

Kai Wilkinson · Answer 2

0.5a√ (a^2 - (0.5a) ^2).

Step-by-step 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).