1. Lesson 40.notebook January 04, 2013
Assignment:
1­­>Set 40 (evens) ­ Due Tuesday (1/8)
2­­>Test #6 ­ Friday (1/11)
...Practice Integer Flashcards ­ Timed Tests start on Monday!
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2. Lesson 40.notebook January 04, 2013
Lesson 40 Warm­Up:
1) Write 32% as a decimal and as a reduced fraction.
2) Combine like terms: xyz + yxz ­ zyx ­ x 2yz
3) Expand: ­4x(2x ­ 9)
4) Simplify: 1/9 + 4/6 4/12
10 feet
5) Find the perimeter:
12 feet
15 feet
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3. Lesson 40.notebook January 04, 2013
Lesson 40
*sector – a portion of the interior of a circle enclosed
by two radii and an arc (a part of a circle)
*central angle – the angle formed by 2 radii and
determines the fraction of the area of the circle the
sector occupies
FYI...Area of a circle ­ pi times radius squared
x r2
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4. Lesson 40.notebook January 04, 2013
Examples ­ Lesson 40
pg. 267
A)
B)
C)
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5. Lesson 40.notebook January 04, 2013
D)
E)
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6. Lesson 40.notebook January 04, 2013
F)
G)
H)
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