Question

Angle RST measures 80 degrees. Ray SU bisects the angle. What is the measure of the two smaller angles?A) 20 degreesB) 40 degreesC) 80 degreesD) 160 degrees

Answer 1

It is given that angle RST measures 80 degrees and ray SU bisects the angle.

As it bisects SU , the angle 80 degree divide into two parts.

`(80)/(2)=40^(\circ)`

Hence the measure of two smaller angles are 40 degrees.

The correct option is B.