alleryStart learning →Two lines cross, and a pair of vertically opposite angles are (4x + 5)° and (6x - 25)°. What is the measure of each?
A65°
B60°
C75°
D55°
Answer & Solution
Correct answer: A. 65°
Vertically opposite angles are equal, so 4x + 5 = 6x - 25 gives x = 15, and each angle is 4(15) + 5 = 65°.
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