Download 2-2 Homework Key (Medians & Angle Bisectors)

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HINTS FOR THE QUIZ ON PAGE 3!!!!
2-2 Homework Key (Medians & Angle Bisectors)
1. x = 6
2. x = 3
5. x = 12
AD = 168
6. x = 6
<BAC = 840
4. x = 11
3. x = 2
7. x = 16
OE = 178
9. y = 13
<BAC = 700
11. y = 5
y = -2
AC = 80
12. y = 4
8. x = 17
DC = 71
10. x = 9
x = 12
CD = 168
x = 20
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HINTS FOR THE QUIZ ON PAGE 3!!!!
2-3 Homework Key (Altitude & Perp Bisectors)
1. x = 24
3. <ABC = 710
5. <CAD = 530
7. x = 24
9. x = 6
11. y = 9
EO = 42
13. x = 1
SU = 4
y = 10
<XTV = 600
2. x = 5
<DBC = 380
4. x = 37
6. x = 7
8. y = 8
x = 30
10. x = 16
12. x = 8.5
14. < PSR = 720
No, PS is not an altitude.
CHECK ALL THREE PAGES!!!!!
HINTS FOR THE QUIZ ON PAGE 3!!!!
6 keywords & what they do
Vertical Angles: Create congruent angles
Statement: Vertical angles create congruent angles
Then write an equation to it the question
Supplementary angles: Add to 1800. Commonly found as a
linear pair.
Statement: Supplementary angles equal 1800
Then write an equation to it the question
Medians: Create a midpoint; midpoints create two congruent
segments
Example: BD is a median
Statement: AD = DC
Then write an equation to it
the question
Angle Bisectors: Create two congruent angles.
Example: AD is an angle bisector
Altitudes: Create right angles
Example: BD is an altitude
B
A
D
C
Statement: <BAD = <CAD
Then write an equation to it
the question
Statement: <BDA is a right angle
or <BDC is a right angle
Then write an equation to it
the question
Perpendicular bisectors: Create right angles AND create
midpoints (which then create congruent segments)
Ex:
BD is a perpendicular bisector
Statement: <BDA is a right angle
or <BDC is a right angle
or AD = DC
Then write an equation to it
the question