2. Example 1: Identify Solids Example 2: Identify Solids
Main Idea
New Vocabulary
Example 1: Identify Solids
Example 2: Identify Solids
Example 3: Analyze Drawings
Example 4: Identify Cross Sections
Lesson Menu

3. Identify and draw three-dimensional figures.
Main Idea/Vocabulary

4. coplanar parallel solid polyhedron edge face vertex diagonal prism
base
pyramid
cylinder
cone
cross section
Main Idea/Vocabulary

5. Identify the figure. Then name the bases, faces, edges, and vertices.
Identify Solids
Identify the figure. Then name the bases, faces, edges, and vertices.
Answer:
The figure has two parallel congruent bases that are octagons, so it is an octagonal prism.
bases: ABCDEFGH, IJKLMNOP
faces: ABCDEFGH, IJKLMNOP, ABKJ, BKLC,CLMD, DMNE, ENOF, FGPO, GHIP, HAJI
Example 1

6. Identify the figure. Then name the bases, faces, edges, and vertices.
Identify Solids
Identify the figure. Then name the bases, faces, edges, and vertices.
Answer:
edges:
vertices: A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P
Example 1

7. Identify the figure. Then name the bases.
A. triangular pyramid; JKL and MNO
B. triangular pyramid; JLMN and KLNO
C. triangular prism; JKL and MNO
D. triangular prism; JLMN and KLNO
Example 1 CYP

8. Identify the figure. Then name the bases, faces, edges, and vertices.
Identify Solids
Identify the figure. Then name the bases, faces, edges, and vertices.
Answer:
The figure has one base that is a rectangle, so it is a rectangular pyramid.
base: RSTU
faces: RSTU, QRS, QST, QTU, QRU
edges:
vertices: Q, R, S, T, U
Example 2

9. Identify the figure. Then name the vertices.
A. pentagonal pyramid; R
B. pentagonal pyramid; R, S, T, U, V, W
C. pentagonal prism; R
D. pentagonal prism; R, S, T, U, V, W
Example 2 CYP

10. FURNITURE Draw and label the top, front, and side views of the crib.
Analyze Drawings
FURNITURE Draw and label the top, front, and side views of the crib.
Example 3

11. Analyze Drawings
Answer:
Example 3

12. GIFTS Draw and label the top, front, and side views of the gift box.C. D.
Example 3 CYP

13. Identify Cross Sections
Describe the shape resulting from a vertical, angled, and horizontal cross section of a triangular prism.
Vertical Slice
Answer: The cross section is a rectangle.
Example 4

14. Identify Cross Sections
Describe the shape resulting from a vertical, angled, and horizontal cross section of a triangular prism.
Angled Slice
Answer: The cross section is a trapezoid.
Example 4

15. Identify Cross Sections
Describe the shape resulting from a vertical, angled, and horizontal cross section of a triangular prism.
Horizontal Slice
Answer: The cross section is a triangle.
Example 4

16. A. vertical: rectangle; angled: square; horizontal: rectangle
Describe the shape resulting from a vertical, angled, and horizontal cross section of a rectangular prism.
A. vertical: rectangle; angled: square; horizontal: rectangle
B. vertical: rectangle; angled: rectangle; horizontal: square
C. vertical: rectangle; angled: parallelogram; horizontal: rectangle
D. vertical: square; angled: square; horizontal: square
Example 4 CYP