geometry q1 review

Front

What are congruent angles?

Back

Congruent angles are angles that have the same measure. In a triangle, if two angles are congruent, the sides opposite those angles are also equal in length.

Front

What is a linear pair of angles?

Back

A linear pair of angles consists of two adjacent angles that are formed when two lines intersect. The angles in a linear pair are supplementary, meaning they add up to 180 degrees.

Front

What is the relationship of alternate interior angles?

Back

Alternate interior angles are pairs of angles that are on opposite sides of a transversal and inside the two lines it intersects. If the lines are parallel, alternate interior angles are congruent.

Front

How do you find the missing angle in a triangle?

Back

To find the missing angle in a triangle, use the fact that the sum of the angles in a triangle is always 180 degrees. Subtract the sum of the known angles from 180.

Front

What is the conclusion in a conditional statement?

Back

In a conditional statement of the form 'If P, then Q', the conclusion is the part that follows 'then'. For example, in 'If I have a Siberian Husky, then I have a dog', the conclusion is 'I have a dog'.

Front

What are vertical angles?

Back

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

Front

What is the sum of the interior angles of a triangle?

Back

The sum of the interior angles of a triangle is always 180 degrees.

Front

What are corresponding angles?

Back

Corresponding angles are pairs of angles that are in the same position on two parallel lines cut by a transversal. If the lines are parallel, corresponding angles are congruent.

Front

What is the definition of supplementary angles?

Back

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

Front

What is the definition of complementary angles?

Back

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