Lesson 29 Review

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Look at the Venn diagram below.

Which statement is true?

An equilateral triangle is always an
isosceles triangle.

An isosceles triangle is always an
equilateral triangle.

Scalene and isosceles triangles
share no attributes.

The label inside the largest oval
could be Acute Triangles.

Jenny chose as the correct answer. How did
she get that answer?

All triangles are
three-sided polygons.

What would you say to
Jenny to help her
understand her
mistake?

604

Multiple Choice

Which statement is true?

• A

• B

• C

• D

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604

Esteban sees these categories of
shapes on the front of his family’s
barn: triangles, quadrilaterals,
isosceles triangles, and polygons.

Write two different statements that
describe relationships among the
shapes.

Polygon

Quadrilaterals

Triangles

Isosceles
Triangles

Open Ended

Write two relationships

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Manuel drew a Venn diagram to show how rhombuses and squares are related. He used arrows to label each region with properties of shapes inside that region.

Part A Is Manuel’s Venn diagram correct?
If not, what mistake did he make?

Part B Describe the relationship between rhombuses and squares.

606

Multiple Choice

Is the diagram correct?

• Yes, a square and rhombus do not both have 4 equal sides.

• No, a rhombus has all the same attributes as a square and should be in the center of the diagram.

• Yes, a square does not have parallel sides, only perpendicular.

• No, a square has all the attributes of a rhombus and should be in the center of the diagram.