# Worksheet: Polyhedrons and Nonpolyhedrons

In this worksheet, we will practice defining and identifying polyhedrons and nonpolyhedrons, identifying bases of shapes, and naming polyhedrons according to the shapes of their bases.

**Q1: **

Which of the following is the base of this cone?

- A
- B
- C

**Q2: **

What shape is the base of a cylinder?

- Atriangle
- Bsquare
- Crectangle
- Dcircle

**Q3: **

For the figure below, identify the shape of the base(s). Then, classify the figure.

- Arectangle, rectangular pyramid
- Bsquare, cube
- Coctagon, octagonal prism
- Dpentagon, pentagonal pyramid
- Esquare, rectangular pyramid

**Q4: **

For the figure below, identify the shape of the base(s). Then, classify the figure.

- Aoctagon, octagonal prism
- Brectangle, rectangular pyramid
- Ctrapezoid, trapezoidal pyramid
- Dpentagon, pentagonal pyramid
- Etrapezoid, trapezoidal prism

**Q5: **

For the figure below, identify the shape of the base(s). Then, classify the figure.

- Apentagon, pentagonal pyramid
- Brectangle, rectangular pyramid
- Coctagon, octagonal pyramid
- Dtrapezoid, trapezoidal prism
- Eoctagon, octagonal prism

**Q7: **

How many bases does a cylinder have?

**Q8: **

The cone has base(s).

**Q9: **

For the figure below, identify the shape of the base(s). Then, classify the figure.

- Apentagon, triangular pyramid
- Btriangle, triangular pyramid
- Coctagon, octagonal prism
- Dpentagon, pentagonal pyramid
- Etriangle, triangular prism

**Q11: **

How many bases does a sphere have?

**Q12: **

How many bases does this cone have?

**Q13: **

Which of these shapes has no flat faces, no bases and no vertices?

- Aa cuboid
- Ba cone
- Ca sphere
- Da cylinder

**Q14: **

What shape is the base of a cone?

- Aa circle
- Ba triangle
- Ca rectangle

**Q15: **

How many bases does a triangular prism have?

**Q16: **

Which of the following shapes has two circular bases?

- Aa cylinder
- Ba cuboid
- Ca cone
- Da sphere

**Q17: **

For the figure below, identify the shape of the base(s). Then, classify the figure.

- Aoctagon, octagonal prism
- Bsquare, square prism
- Ctriangle, triangle pyramid
- Dsquare, square pyramid
- Epentagon, pentagonal pyramid

**Q18: **

For the figure below, identify the shape of the base(s). Then, classify the figure.

- Apentagon, pentagonal pyramid
- Brectangle, rectangular pyramid
- Ccircle, cylinder
- Dcircle, sphere
- Eoctagon, octagonal prism

**Q19: **

What shape is the base of a cone?

- Atriangle
- Bsquare
- Ccircle
- Drectangle

**Q20: **

For the figure below, identify the shape of the base(s). Then, classify the figure.

- Atriangle, triangular prism
- Bpentagon, pentagonal pyramid
- Crectangle, rectangular pyramid
- Dtriangle, triangular pyramid
- Erectangle, triangular prism

**Q21: **

How many bases does the following shape have?

**Q22: **

How many bases does the following shape have?

**Q23: **

What shape is the base of a cylinder?

- Aa circle
- Ba triangle
- Ca square

**Q24: **

How many bases does the following shape have?

**Q25: **

Which of the following shapes has one vertex and one circular base?

- Aa cylinder
- Ba cone
- Ca cuboid
- Da sphere