Shapes in the Classroom

1. David, Arjun, and Lily are building a shape with three sides. How many vertices will the shape have?

• 1

• 2

• 3

• 4

2. What types of angles can be identified in a rectangle? (Select all answers that correspond)

• Acute
• Right
• Obtuse
• Reflex

3. What properties make these shapes different? (Select all answers that correspond)

• Number of sides
• Number of parallel sides
• Number of perpendicular sides
• Types of angles

4. What properties do Benjamin, William, and Jackson notice that make these shapes similar? (Select all answers that correspond)

• Number of perpendicular sides

• Number of acute angles

• Number of obtuse angles

• Number of right angles

5. Which of the following statements are true for polygons? (Select all that apply)

• All polygons are closed shapes.

• All polygons have three dimensions.

• No polygons have less than three sides.

• No polygons have curves.

6. Which of the following statements are true for triangles? (Select all that apply)

• All triangles have intersecting lines.

• All triangles have parallel lines.

• No triangles have perpendicular lines.

• No triangles have parallel lines.

Is the number of sides and the number of vertices in a quadrilateral or a triangle always the same or different?

• Always the same

• Always different

What types of lines can be present in triangles?

• Vertical

• Horizontal

• Intersecting

• Parallel

• Perpendicular