1st Semester Geometry Review

Front

What is an isosceles triangle?

Back

A triangle with at least two sides of equal length and at least two angles that are congruent.

Front

What can we conclude if a triangle has at least two congruent angles?

Back

The triangle is isosceles.

Front

What is the equation for the sum of angles in a triangle?

Back

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

Front

What are corresponding angles?

Back

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

Front

What are 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 coordinate point (8, 5)?

Back

A point located 8 units along the x-axis and 5 units along the y-axis.

Front

How do you set up an equation for the sum of angles in a triangle?

Back

You can set it up as x + y + z = 180, where x, y, and z are the angles.

Front

What is the relationship between vertical angles?

Back

Vertical angles are always congruent (equal in measure).

Front

What is the definition of alternate interior angles?

Back

Angles that are on opposite sides of the transversal and inside the two lines.