Math
Geometry - Angle
MCQ
The measures of two angles intersecting a line are (5x - 15)° and (3x + 5)°. What is x if they are opposite angles?
A
10
B
15
C
20
D
25
Explanation
Opposite angles are equal ⇒ 5x - 15 = 3x + 5 ⇒ 2x = 20 ⇒ x = 10.
Correct 0 Wrong 0