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Complementary and supplementary angles

Find the angle that completes 90° or 180°, as requested.

How to use this tool

Find the angle that completes 90° or 180°, as requested.

Choose largest angle step (2° each) and the number of questions.
Find the angle that completes 90° or 180°, as requested.
Print the practice pages for learners; keep the answer pages for checking.

Up to 24 questions. Some topics use products of the selected range, so final values can be larger. Questions may repeat in small ranges.

Your entries stay in this browser. Print at 100% scale on matching A4 or Letter paper. Printing help

Sample questions

Find the complement of 14°.
Find the supplement of 24°.
Find the complement of 8°.

Check answers

76°
156°
82°

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