A unit rate <span> is a comparison of two different quantities when they are combined together.</span>
Answer:
<h3>
m∠1 = 72°</h3>
Step-by-step explanation:
We know: The sum of the measures of a triangle is 180°.
Therefore we have the equation:

We have

Substitute:

<em>subtract 108° from both sides</em>

I believe that the answer C
Um is there any chance u can tell me what that means in English? <span />