Chap7Bday3.notebook
February 08, 2013
Geometry Ch7 Day 3
Let's review first....
Triangles:
rt use pythag to find missing side
special rt
45-45-90[ or by ]
30-60-90 [ or by 2 or ]
Areas: Rectangles: A = bh (b and h are lengths)
's: A = bh (b and h are lengths)
's:
Ch7B day3
(b and h are
lengths)
1
Chap7Bday3.notebook
February 08, 2013
OBJ: to find the areas of trapezoids.
NEW formula!
Again, the lengths that are being
multiplied are !
h
Find the Areas.
ex:
38 in
16 in
21 in
Ch7B day3
2
Chap7Bday3.notebook
February 08, 2013
ex:
9 ft
18 ft
ex:
8m
Ch7B day3
6 ft
6m
10 m
3
Chap7Bday3.notebook
ex:
February 08, 2013
8 ft
60o
15 ft
Ch7B day3
4
Chap7Bday3.notebook
February 08, 2013
ex: round ans to nearest 100th
12 ft
10 ft
30o
ex: round ans to nearest 100th
2 in
3.1 in
45o
Ch7B day3
2.5 in
5
Chap7Bday3.notebook
February 08, 2013
Assign PP 376-379 (2-12 even, 22, 27, 28, 43)
P371 (34)
Ch7B day3
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