Geometry and TrigonometryEasyAngles on a straight line
Geometry and Trigonometry practice question
A ray divides a straight angle into two angles. One of the angles measures 110°. What is the measure, in degrees, of the other angle?
Answer: 70
Angles on a straight line add to 180: 180 − 110 = 70.
Common wrong answers
- If you answered 80
- 80 is a subtraction slip.
- If you answered 110
- 110 is the given angle.
- If you answered 250
- 250 subtracts from 360 instead of 180.
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