Two parallel lines are cut by a transversal. Corresponding angles are (5x - 10)° and (3x + 30)°. What is each angle?
A90°
B80°
C100°
D70°
Answer & Solution
Correct answer: A. 90°
Corresponding angles are equal, so 5x - 10 = 3x + 30 gives x = 20, and each angle is 5(20) - 10 = 90°.
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