Worked examples
Two examples
Example 1
What is the complement of a 35° angle?
- Complementary angles add to 90°: 90 − 35.
Answer: 55°
Example 2
What is the supplement of a 112° angle?
- Supplementary angles add to 180°: 180 − 112.
Answer: 68°
Where this is taught: Quiz 36: Angles, “Two angles on a line add to 180”
The drill
Ten problems
This drill also has challenge problems. They use the same skill, set up the way the GED test sometimes sets up a problem, so that it looks new at first.
How many:
Type each answer, then press Check my answers at the bottom. Commas in large numbers are fine.Write each answer on the line. The answer key, with the reasoning, is on the last page.