Answer
54 degrees
Step-by-step explanation:
Using angle sum property(angles in a triangle add up to 180),
y+y+72=180
2y+72=180
2y=180-72
2y=108
y=108/2
y=54 degrees
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Answer:
A 54
The sum of the angles of a triangle add to 180 degrees
72+y+y = 180
Combine like terms
72 +2y = 180
Subtract 72 from each side
72-72 +2y = 180-72
2y = 108
Divide by 2 on each side
2y/2 = 108/2
y = 54
