Go Math - Mid-Chapter 12

An _________ is formed by two rays that share an endpoint.

• angle

• point

• polygon

A ___________ is a closed plane shape made up of line segments.

• point

• angle

• polygon

A _________ forms a square corner.

• right angle

• point

• polygon

Look at the picture.

Is the angle a right angle, less than a right angle, or greater than a right angle.

• right angle

• less than a right angle

• greater than a right angle

Look at the picture.

Is the angle a right angle, less than a right angle, or greater than a right angle.

• right angle

• less than a right angle

• greater than a right angle

Look at the picture.

Is the angle a right angle, less than a right angle, or greater than a right angle.

• right angle

• less than a right angle

• greater than a right angle

Look at the picture. Count the number of sides and angles. Name the polygon.

• hexagon

• quadrilateral

• pentagon

Anne drew the shape in the picture. Is her shape an open shape or a closed shape?

• open shape

• closed shape

• upside down shape

This sign tells drivers there is a steep hill ahead. What is the name of this shape?

• quadrilateral

• pentagon

• hexagon

Why is this closed plane shape NOT a polygon?

• It's too small to be a polygon

• There are no line segments that meet only at their endpoints

• It's too large to be a polygon