Geometry Vocab

What is a ray?

• A straight line that goes on forever in both directions

• The part of a line with two endpoints that do not go on forever

• A part of a line that starts with an endpoint and goes on forever in the opposite direction

What is a line segment?

• set of points that goes on forever in both directions

• curved line that goes on in one direction forever

• part of a line between two endpoints

The distance around an object is called the 

• area

• perimeter

How do you find the area of a rectangle?

• Length + Length + Length + Length

• Length + Width

• Length x Width

• Width x Width

Adam was painting a wall in his room. The wall was 4 feet wide and 4 feet tall. What is the area of the wall he has to paint?

• 16ft

• 8ft

• 12ft

• 4ft

What is a symbol that marks the center of a circle?

• Center Mark

• Zero Edge

• Ray

• Angle Vertex

Select all that apply.

A square is also classified as a:

• rhombus

• parallelogram

• trapezoid

• rectangle

• quadrilateral

An angle that measures 89° is classified as ________ .

• right

• straight

• acute

• obtuse

Select the shapes that can have at least one pair of parallel sides.

• rectangle

• rhombus

• trapezoid

• triangle

• square

The measurements of interior angles of a triangle add up to 180º. Triangle ABC is a right triangle with a right angle at vertex A. What must be true of the angles at vertex B and vertex C ?

• The angles at vertex B and vertex C are both acute.

• The angles at vertex B and vertex C are equal.

• The angles at vertex B and vertex C are both right.

• The angles at vertex B and vertex C add up to 90º.