Scholarship Exam Preparation App
Class 6 - (Math )
Geometry - Angle
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.