IXL | Describe relationships among quadrilaterals

Complete the sentence below. You can use this diagram to help you.

Every trapezoid is a

quadrilateral

parallelogram

rectangle

quadrilateral

ref_doc_title.

Learn with an example

question

Complete the sentence below. You can use this diagram to help you.

A square is

always

a rectangle.

always

sometimes

never

key idea

A square is a parallelogram with four congruent sides and four right angles.

A rectangle is a parallelogram with four right angles. So, a rectangle has two pairs of parallel sides and four right angles.

solution

Every square is a parallelogram with four right angles.

So, a square is always a rectangle.

You can also see this by looking at the diagram. The region for squares is completely inside the region for rectangles. This tells you that every square is also a rectangle.

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