117 degrees
The angles in a trapezoid add up to 360 degrees. 63 x 2 = 126
360 - 126 = 234
234/2 = 117
Answer:
145
Step-by-step explanation:
180-137=43
43+102=145
Answer: 504
Step-by-step explanation:
Y=12 because the triangles have proportional side lengths
