Describing Angles

The three angles together form a straight angle. Thus, the sum of their measures is $180^\circ.$

m\angle v+108^\circ+m\angle v=180^\circ

\text{LHS}-108^\circ=\text{RHS}-108^\circ

m\angle v+m\angle v=72^\circ

SimpTermsSimplify terms

2\cdot m\angle v=72^\circ

\left.\text{LHS}\middle/2\right.=\left.\text{RHS}\middle/2\right.

m\angle v=36^\circ

Thus,

\angle v

has the measure

36^\circ.

Describing Angles 1.13 - Solution