Complementary angles are two angles with a sum of 90°. A common case is when they form a right angle.
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Brief blurb describing what the activity. If this has been borrowed from some external web site (for example, a non OER or OER site which had this idea and based on which the activity was developed)
=== Objectives ===
=== Objectives ===
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# Is it required for the pair of angles to be adjacent to be complementary?
# Is it required for the pair of angles to be adjacent to be complementary?