IXL | Identify complementary, supplementary, vertical, adjacent, and congruent angles

Which angle is adjacent to 6?

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Learn with an example

question

Which angle is congruent to 3?

key idea

Congruent angles have the same measure.

Vertical angles are angles formed opposite each other when two lines intersect. Vertical angles are congruent.

solution

Look at 3 and 6:

6 and 3 are congruent. They are vertical angles, which have the same measure.

Looking for more? Try these:

Lesson: Complementary angles

Lesson: Supplementary angles

Lesson: Vertical angles

Lesson: Adjacent angles

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Not feeling ready yet? These can help:

DD.5Complementary and supplementary angles

DD.4Name angles