1. Opener:
1. P is between A and K. AP is six more than twice
as long as PK. If AK is 72 cm. long, how long is AP?
2. Factor the following:
a. x2 + 6x ‐16 b. 2x2 ‐ 10x ‐ 100
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2. 2

3. 3

4. Homework Questions:
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5. Section 1­3 and 1­4: Measuring Angles & Pairs of Angles
Basic Angle Information:
What's true about BLU and ULE?
B
U
L E
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6. What's happening???
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7. Angle Pairs:
How would you describe these angles?
B
U
L E
How would you describe these angles?
A
B L C K
How would you describe these angles?
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8. What's special about angles 1 & 3 as well as angles 2 & 4?
2
1 3
4
What do you think is true about those angle pairs?
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9. Let's Practice with....
TRASHKETBALL!!!
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10. Try It:
1. N is in the interior of PIK. m PIN = 37 and m PIK = 84 .
Find m NIK.
2. E is in the interior of GRN. Find m GRN if m GRN = 10x ­ 7,
m ERN = 5x, and m GRE = 4x + 6.
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11. Try It:
3. ES bisects RED. m RES = 6x + 3, and m SED = 8x ­ 7.
Find m RES.
4. IM bisects LIE. m LIM = 4x + 6, and m MIE = 7x ­ 12.
Find m LIM.
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12. Try these:
4. Find the measure of each of the following:
a. the complement of M when m M = 26.8.
b. the supplement of N when m N = 2y + 20.
5. An angle measures 3 degrees less than twice the measure of its
complement. Find the measure of its complement.
6. An angle's measure is 12 degrees more than half the measure of
its supplement. Find the measure of the angle.
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