Question

Find the measure of angle R.

Answer 1

Hi! let's go:

The measures of interior angles of a triangle sum to 180°... ok?
According to the figure, Q and R have equal measure >>> X <<<

So, 64° + 2X = 180°
2X = 180° - 64°
2X = 116
X = 116 / 2
X = 58

As a result, angle R equals 58°

:)

Answer 2

64 + 2x = 180
2x = 116
x = 58

angle R equals 58 degrees