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Geometry Section 4.1 HW NMV
For problems 1 – 3, classify each triangle according to its sides AND angles. Draw each triangle first and put in the
information.
1. mA  45
2. mA  30
mB  45
mB  50
AC  BC  AB
AC = BC
3. mB  mC  70
AC = AB
E
4. ABE is an exterior angle of both BEC and BED . Name the
two remote interior angles in each case.
BED
BEC
A
In problems 5 – 11, determine the value of each variable.
5.
6.
x
x
37
y
70
124
B
D
C
7.
3x+4
78
2x-10
Section 4.1 HW page 2 NMV
8.
9.
3x+6
y
2x+27
y
80
10.
10x-15
3x+45
10x
100
x
11.
66
x
z
120
y
w
z
26
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