Geometry A Unit 5

Front

What is the definition of congruent triangles?

Back

Congruent triangles are triangles that are identical in shape and size, meaning their corresponding sides and angles are equal.

Front

What theorem states that the sum of the angles in a triangle is 180 degrees?

Back

The Triangle Sum Theorem states that the sum of the interior angles of a triangle is always 180 degrees.

Front

What is the smallest polygon in flat geometry?

Back

The smallest polygon in flat geometry is a triangle.

Front

What is the definition of an isosceles triangle?

Back

An isosceles triangle is a triangle that has at least two sides of equal length.

Front

What does the Alternate Interior Angles Theorem state?

Back

The Alternate Interior Angles Theorem states that if two parallel lines are cut by a transversal, then each pair of alternate interior angles is equal.

Front

What is the definition of a parallelogram?

Back

A parallelogram is a quadrilateral with opposite sides that are both parallel and equal in length.

Front

What is the Parallelogram Opposite Angles Converse?

Back

The Parallelogram Opposite Angles Converse states that if a quadrilateral has opposite angles that are equal, then it is a parallelogram.

Front

What is the formula for the area of a triangle?

Back

Front

What is the definition of complementary angles?

Back

Complementary angles are two angles whose measures add up to 90 degrees.

Front

What is the definition of supplementary angles?

Back

Supplementary angles are two angles whose measures add up to 180 degrees.