Question

Find the area of this triangle..

Answer 1

27.71 units²

Explanation:

There is a formula to find the area of an equilateral triangle.

A = (√3)/4 × a²

The variable a is the side length.

A = (√3)/4 × (8)²

A ≈ 27.71

The area is 27.71 squared units.

Answer 2

Answer

Area is 27.72

Explanation

Split the triangle into 2 equal halves via the middle.

You will then have 4 as the bottom side of each of the 2 triangles.

Using Pythagorean’s theorem,

8^2 - 4^2 = 48

Square root 48 = 6.93~

6.93 = h

Area of triangle = b • h / 2

We know b = 8 and now we know h = 6.93

8 • 6.93 / 2 = 27.72