Question

What is the area of an equilateral triangle of side 2a

Answer 1

Answer:

Step-by-step explanation:

Equilateral triangle: the altitude h can be found as below, as the altitude divides the triangle in to two equal parts. The base is divided into two.

h² = side² - (side/2)² = 3/4 side² = 3 a²

h = √3 a

area = 1/2 (2a) √3 a  = √3 a²

Answer 2

Answer:

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