Question

Find the value of X.

Answer 1

As in the given figure, all the sides are equal i.e., 5 units

It is a equilateral triangle.

In equilateral triangle all the angles are 60°.

`3x = 60 \\ x = (60)/(3) \\ \boxed{x = 20}`

20 is the right answer.

Answer 2

All 3 sides of the triangle are the same, which means all 3 inside angles are the same. Each inside angle is 60 degrees.

We now have 3x = 60

Divide both sides by 3:

x = 60/3

x = 20