Semester 1 Final review

Front

What are complementary angles?

Back

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

Front

Provide an example of complementary angles.

Back

81° and 9° are complementary angles because 81 + 9 = 90.

Front

What is a parallelogram?

Back

A parallelogram is a four-sided figure (quadrilateral) with opposite sides that are parallel and equal in length.

Front

How do you solve for x in a parallelogram?

Back

Use the properties of parallelograms, such as opposite angles being equal, to set up equations and solve for x.

Front

What are vertical angles?

Back

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

Front

Identify a pair of vertical angles from the following: ∠COB & ∠COA, ∠AOD & ∠AOC, ∠COB & ∠AOD, ∠BOD & ∠AOD.

Back

∠COB & ∠AOD are vertical angles.

Front

What is inductive reasoning?

Back

Inductive reasoning is a method of reasoning in which a general rule or conclusion is inferred from specific cases.

Front

Complete the pattern: 400, 200, 100, 50, ____

Back

The next number is 25.

Front

If angle 1 is 135 degrees, what is angle 3 if they are equal?

Back

Angle 3 is also 135 degrees.

Front

What is the sum of angles in a triangle?

Back

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