Module 20: 5th Grade (Form A)

Select all the shapes that are regular polygons.

• A, B, C

• A, C, E

• B, D, E

• C, D, E

What is always true about equilateral triangles and acute triangles?

• Both have 1 angle greater than 90°.

• Both have 3 angles less than 90°.

• Both have 2 congruent angles.

• Both have 3 congruent angles.

A quadrilateral is drawn with sides that are perpendicular. The opposite sides are congruent only to each other. What type of quadrilateral could have been drawn?

• a rectangle, but not a rhombus

• a square, but not a parallelogram

• a rhombus, but not a square

• a parallelogram, but not a rectangle

Which shape can be classified as a quadrilateral but not a parallelogram?

• A

• B

• C

• D

Which statement BEST explains what shapes in the overlapping section of the Venn diagram would have in common?

• They have at least 1 right angle.

• They have at least 1 pair of parallel sides.

• They have at least 1 right angle or at least 1 pair of parallel sides.

• They have at least 1 right angle and at least 1 pair of parallel sides.

The diagram shows two triangles put together to make a rectangle. Select all the terms that describe the type of triangle used to make the rectangle. (2 answers)

• isosceles

• right

• obtuse

• acute

• Scalene

Write the name of the polygon with 5 angles.

• Pentagon

• Hexagon

• Nonagon

• Octagon

Write the name of the polygon with 9 vertices.

• Nonagon

• Hexagon

• Octagon

• Heptagon

Write the name of the polygon with 6 sides.

• Hexagon

• Pentagon

• Octagon

• Decagon

Write the name of the polygon with 9 vertices?

• Hexagon

• Pentagon

• Octagon

• Nonagon