Ch 4 Theorems/Def

Front

Vertical Angles are _________

Back

Congruent

Front

Hypotenuse Leg Theorem (HL) states:

Back

If the hypotenuse and the leg of a right triangle are congruent to the hypotenuse and a leg of a second right triangle, then the two triangles are congruent.

Front

Corresponding Angles Theorem states:

Back

If two parallel lines are cut by a transversal, then the pairs of corresponding angles are congruent.

Front

Side-Side-Side Congruence Postulate (SSS) states:

Back

If three sides of one triangle are congruent to three sides of a second triangle, then the two triangles are congruent.

Front

What are Vertical Angles?

Back

Vertical angles are the angles opposite each other when two lines cross. They are always congruent.

Front

What is the definition of Congruent Triangles?

Back

Triangles that are identical in shape and size, meaning all corresponding sides and angles are equal.

Front

What does the term 'Transversal' refer to?

Back

A line that intersects two or more lines at different points.

Front

What is the definition of Supplementary Angles?

Back

Two angles that add up to 180 degrees.

Front

What is the definition of Complementary Angles?

Back

Two angles that add up to 90 degrees.

Front

What is the definition of a Right Triangle?

Back

A triangle that has one angle measuring 90 degrees.