Answer:
102°
Step-by-step explanation:
They're still corresponding angles... have you read any of these explanations?...
Pythagorean Theorem
x^2 = 15.7^2 -7.8^2
x^2 =
<span>
<span>
<span>
185.65
</span>
</span>
</span>
x =
<span>
<span>
<span>
13.6253440324
</span>
</span>
</span>
Answer is C
Please see the pic, I'd solved your question in it.