1. Splash Screen

2. If ΔFOG  ΔHAT, what segment is congruent to TH?
___
___
A. FG
B. GF
C. OG
D. GO
5-Minute Check 1

3. The vertices of figure WXYZ are W(2, 3), X(4, 5), Y(5, 1) and Z(1, –2)
The vertices of figure WXYZ are W(2, 3), X(4, 5), Y(5, 1) and Z(1, –2). What are the coordinates after WXYZ is rotated 90˚ clockwise about the origin?
A. W'(–2, 3), X'(–4, 5), Y'(–5, 1), Z'(–1, 2)
B. W'(2, –3), X'(4, –5), Y'(5, –1), Z'(1, 2)
C. W'(3, 2), X'(5, 4), Y'(–1, –5), Z'(2, 1)
D. W'(3, –2), X'(5, –4), Y'(–1, –5), Z'(–2, –1)
5-Minute Check 2

4. You have already modeled three-dimensional figures. (Lesson 12–1a)
Identify three-dimensional figures.
Describe and draw vertical, horizontal, and angled cross sections of three-dimensional figures.
Then/Now

5. Concept

6. Identify the figure. Name the bases, faces, edges, and vertices.
Identify Solids
Identify the figure. Name the bases, faces, edges, and vertices.
Answer: This figure has two parallel congruent bases that are rectangles, GHJK and LMNP, so it is a rectangular prism.
faces: GHJK, LMNP, GHML, HJNM, JKPN, GKPL
edges:
vertices: G, H, J, K, L, M, N, P
Example 1

7. End of the Lesson