1) The document provides notes from a math lesson on January 15th that includes a warm-up assignment, definitions of surface area and lateral surface area, and examples of calculating surface areas of different shapes. 2) The warm-up has 5 math problems including solving an equation, simplifying an expression, writing a decimal and percent, and finding an area. 3) Examples are given to calculate the surface areas of different shapes like a rectangular prism, cylinder, and triangular prism using the definitions and formulas provided earlier.

1. Lesson 43.notebook January 15, 2013
Assignment:
1­­>Set 43(odds) ­ Due Tomorrow [1/16]

2. Lesson 43.notebook January 15, 2013
Lesson 43 Warm­Up:
1) Solve: 30.7 ­ x = 20
2) Simplify: (­3) + (­5)
­4
3) Write 2/9 as a decimal.
4) Write 2/9 as a percent.
5) Find the area: (dimensions are in feet)
5
6
2
4

3. Lesson 43.notebook January 15, 2013
Lesson 43
*surface area – the combined area of the surfaces of a solid
*lateral surface area – the combined area of the side faces,
not including the top or bottom
­­"Perimeter of the base" x "height"
Surfac
e Area
top ­
bottom ­
front ­
3.5 in back ­
4 in
side 1 ­
3 in side 2 ­

4. Lesson 43.notebook January 15, 2013
Examples ­ Lesson 43:
pg. 297
A)
B)

5. Lesson 43.notebook January 15, 2013
C)
D)