Classify Shapes

A trapezoid... (select all that apply)

• is a quadrilateral

• has one set of parallel sides

• is a parallelogram

• has two sets of parallel sides

This is a ______.

• hexagon

• octagon

• pentagon

• triangle

An acute triangle is

• A triangle with 1 obtuse angle

• A triangle with all sides the same length

• A parallelogram

• A triangle with 3 acute angles

I am a triangle with an angle larger than 90 degrees. 
What type of triangle am I?

• right triangle

• obtuse triangle

• acute triangle

Which shape has 4 equal sides and 4 right angles?

• Circle

• Triangle

• Square

• Rectangle

Which of these shapes is NOT a polygon?

• Triangle

• Square

• Circle

• Rectangle

Which of the following is NOT a name for the figure?

• quadrilateral

• trapezoid

• parallelogram

• polygon

I am a shape with 3 or more sides. What type of shape am I?

• a ray

• a circle

• a polygon

• an oval

Answer explanation

A polygon is a closed shape with 3 or more sides.

What type of angle is this?

• Acute

• Right

• Obtuse

• Straight

Which type of angle is this?

• Acute

• Right

• Obtuse

• Straight