Unit 7 - Lesson 5 - Grade 5: Illustrative Mathematics

What do you know about trapezoids?

Is it a square? Rectangle? Rhombus? Parallelogram? Explain your reasoning.

Describe a trapezoid in your own words. Compare your definition with a partner.

Is this shape a trapezoid according to your definition? Explain your reasoning.

Which statements go with the first definition? Which statements go with the second definition? Explain or show your reasoning.1. All parallelograms are trapezoids.2. No parallelograms are trapezoids.3. All trapezoids are parallelograms.4. Some trapezoids are parallelograms.5. No trapezoids are parallelograms.

When is a quadrilateral also a trapezoid?

Which of the following shapes are trapezoids? Show or explain your reasoning.