3.Find the value of 'a' and 'b' by using properties of parallel lines.
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Answer:
A = 40
B = 140
Step-by-step explanation:
The 40 degree angle is the same side altering angle for angle A. Because of that relationship, the angles have the same value.
A + B will always equal 180 because they are next to each other.
180 - angle A = B
180 - 40 = 140
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