Five-Minute Check (over Lesson 12–1)
CCSS
Then/Now
New Vocabulary
Key Concept: Lateral Area of a Prism
Example 1: Lateral Area of a Prism
Key Concept: Surface Area of a Prism
Example 2: Surface Area of a Prism
Key Concept: Areas of a Cylinder
Example 3: Lateral Area and Surface Area of a Cylinder
Example 4: Real-World Example: Find Missing Dimensions
Content Standards
G.MG.3 Apply geometric methods to solve
problems (e.g., designing an object or
structure to satisfy physical constraints or
minimize cost; working with typographic grid
systems based on ratios).
Mathematical Practices
1 Make sense of problems and persevere in
solving them.
6 Attend to precision.
You found areas of polygons.
•  Find lateral areas and surface areas of
prisms.
•  Find lateral areas and surface areas of
cylinders.
Lateral Area of a Prism
Find the lateral area of the regular hexagonal prism.
Find the lateral area of the regular octagonal prism.
Surface Area of a Prism
Find the surface area of the rectangular prism.
Find the surface area of the triangular prism.
Lateral Area and Surface Area of a Cylinder
Find the lateral area and the surface area of the
cylinder. Round to the nearest tenth.
Find the lateral area and the surface
area of the cylinder. Round to the
nearest tenth.
Find Missing Dimensions
MANUFACTURING
A soup can is covered
with the label shown.
What is the radius of
the soup can?
12.2 HW:
P.  850
10-28E, 50