Question

- A triangle and its angle measures are shown in the diagram.66°(3x -4°(2x +3)What is the value of x?

Answer 1

The sum of the angles in a triangle is 180 degrees. In the given triangle, the angles are 66 degrees, (3x - 4) degrees and (2x + 3) degrees. This means that

66 + 3x - 4 + 2x + 3 = 180

3x + 2x = 180 - 66 + 4 - 3

5x = 115

x = 115/5

x = 23