Geometry and TrigonometryEasySupplement of an angle
Geometry and Trigonometry practice question
An angle measures 112°. What is the measure, in degrees, of its supplement?
Answer: 68
Supplementary angles add to 180°: 180 − 112 = 68.
Common wrong answers
- If you answered 112
- An angle equals its supplement only when both are 90°.
- If you answered 248
- 248 is 360 − 112; supplements add to 180, not 360.
- If you answered -22
- −22 is 90 − 112, using the complement's total of 90. A supplement uses 180.
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