Adjacent and vertical angles

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vertical angles

"opposite" angles.

adjacent angles

2 angles that share a common side and have the same vertex.

In a triangle, how many angles are formed?

3

In a square, how many right angles are formed?

4

When 2 lines intersect, how many angles are formed?

4

Vertical angles are ALWAYS

Congruent (the same degree measurement)

Complementary angles (add up to 90 degrees)

L shape

Adjacent angles

Next to

Congruent

Same size, same shape.

A straight line means:

The angles MUST add up to 180

How do you know how many angles are located in a shape?

The angles will be the same number of sides

Supplementary angles (add up to 180 degrees)

straight line


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