Question

Angles J and K are vertical angles. Angle J measures 85° and angle K measures

(2x + 5)°. What is the value of x?

Answer 1

x= 45°

Explanation:

They are angle on a straight line

85+2x+5 = 180

2x+ 90 = 180

2x = 180-90

2x = 90

dividing both sides of the equation by 2

x = 45