Angles formed by Transversals

Front

What are corresponding angles?

Back

Angles that are in the same position on two parallel lines cut by a transversal. They are equal in measure.

Front

What is an equilateral triangle?

Back

A triangle with all three sides of equal length and all three angles equal to 60 degrees.

Front

Do the side lengths 2 inches, 2 inches, and 4 inches form a triangle?

Back

No, they do not satisfy the triangle inequality theorem.

Front

Which set of side lengths will form a triangle: 3, 6, 12 or 9, 9, 9?

Back

9, 9, 9 will form a triangle because it satisfies the triangle inequality theorem.

Front

What are same-side interior angles?

Back

Angles that are on the same side of the transversal and between the two lines. They are supplementary.

Front

What is the triangle inequality theorem?

Back

The sum of the lengths of any two sides of a triangle must be greater than the length of the third side.

Front

What are alternate interior angles?

Back

Angles that are on opposite sides of the transversal and inside the two lines. They are equal in measure.

Front

What are alternate exterior angles?

Back

Angles that are on opposite sides of the transversal and outside the two lines. They are equal in measure.

Front

What are supplementary angles?

Back

Two angles that add up to 180 degrees.

Front

What are complementary angles?

Back

Two angles that add up to 90 degrees.