Question

Think carefully about the angle relationship the following represents.

What is the value of x?
1) 48

2) 66


3) 24


4) 33

Answer 1

2) 66

Explanation:

2x + 48° = 180° (Angles in linear pair)

-> 2x = 180° - 48°

-> 2x = 132°

-> x = 132°/2

-> x = 66°

Answer 2

x = 66°

Explanation:

The angles lie on a straight line.

→ A straight line has total 180 degrees

• 2(x) + 48° = 180°

• 2(x) = 180° - 48°

• 2(x) = 132°

• x = 66°