Thursday 12/19/13
Day 4
December 19, 2013
HW: STUDY for tomorrow's test!
Aim: Review for tomorrow's Test
Do Now:
In isosceles trapezoid TVKR, TV // RK
TV = 24
RK = 34
VK = 13
Find the length of the altitude
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1
Thurs Dec 19 Test Review
December 19, 2013
HW: Review sheet
If I need my iPod, then I go for a run.
If I don't go for a run, then I don't need my iPod.
If I don't need my iPod, then I don't go for a run.
Contrapositive
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2
Thurs Dec 19 Test Review
December 19, 2013
T Λ T = True
Conjunctions are only True when Both parts are true.
T ν F = True
Disjunctions are only False when Both parts are false.
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3
Thurs Dec 19 Test Review
3.
x1, y1
December 19, 2013
y = 3x + 2 s l slope ciproca te re 2 opposi y + 4 = 2(x + 6) 3
y = 2x 3
or
4.
y = 4x 8
lopes same s
y 5 = 4(x 3)
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or
y = 4x7
4
Thurs Dec 19 Test Review
December 19, 2013
5.
3x10
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3x 10 + 3x 10 + 2x = 180 8x 20 = 180 x = 25
5
Thurs Dec 19 Test Review
December 19, 2013
6.
Both parts must be false
7.
Today is hot
I will go to the beach
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6
Thurs Dec 19 Test Review
December 19, 2013
4 + 5 > 9
2 + 7 > 8
No
Yes
5 + 9 > 12
No
Consecutive angles are supplementary
7x + 3x = 180 10x = 180 x = 18
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Smaller angle:
3x =
3(18) =
54º
7
Thurs Dec 19 Test Review
December 19, 2013
Four congruent sides
5x + 15 = 3x + 31 2x = 16 x = 8
B
A
3x + 31
H
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5x + 15
T
8
Thurs Dec 19 Test Review
December 19, 2013
1
Diagonals are perpendicular:
90 + 2a + 10 + 5a + 10 = 180
7a + 110 = 180
7a = 70 a = 10
10
30
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4 congruent sides: