1. lesson 61.notebook
Assignment:
1-->Set 61 (odds) - Due Tomorrow (1/31)
2-->Test #9 - Thursday [2/6]
January 30, 2014

2. lesson 61.notebook
January 30, 2014
Lesson 61 Warm-Up:
1)
Evaluate:
10m - (my - y2) if m = 10 and y = 6
2) What is the sales tax on a $48.00 purchase if
the tax rate is 6.5%?
3)
Convert 1/25 to a decimal and a percent.
4)
Convert 250% to a fraction and a decimal.
5)
Write seventy-six million in scientific notation.

3. lesson 61.notebook
January 30, 2014
Lesson 61:
*FYI...Formula for Area of a Parallelogram:
"Base" x "Height"
**the base & height must be perpendicular!
**Also....opposite angles are always congruent!!
C
B
Angle A = Angle C
Angle B = Angle D
A
D
And...
Angle A + Angle B = 180
Angle B + Angle C = 180
Angle C + Angle D = 180
Angle D + Angle A = 180

4. lesson 61.notebook
January 30, 2014
Lesson 61 Examples:
Find the perimeter & area of each parallelogram.
A)
10 cm
8 cm
12 cm
B)
12 cm
18 cm
13 cm

5. lesson 61.notebook
January 30, 2014
For problems C-F, find the measures of angles c, d, e, & f in the
parallelogram.
e
C)
d
D)
f
E)
F)
c
75

6. lesson 61.notebook
January 30, 2014
Figure ABCD is a parallelogram. Find the measures of angles G-I.
G) m <g =
D
A
I
H
H) m <h =
60
I) m <i =
C
G
B