13. Lorelei counted the faces on some three-dimensional figures. She found two figures with exactly 5 faces each. Which of two figures have exactly 5 faces each?
A. rectangular prism and triangular prism
B. rectangular pyramid and triangular pyramid
C. rectangular prism and triangular pyramid
D. rectangular pyramid and triangular prism
Answer:
- D. Rectangular pyramid and triangular prism
A. rectangular prism and triangular prism
- Rectangular prism has 6 faces while triangular prism has 5 faces.
B. rectangular pyramid and triangular pyramid
- Rectangular pyramid has 5 faces while triangular pyramid has 4 faces.
C. rectangular prism and triangular pyramid
- Rectangular prism has 6 faces while triangular pyramid has 4 faces.
D. rectangular pyramid and triangular prism
- Both rectangular pyramid and triangular prism has exactly 5 faces.
Therefore, the answer is D. Rectangular Pyramid and Triangular Prism.