Find the measure of the third angle of each triangle.
- D43°, T29°, F 6. W16°,B5°,U
Find the measure of the fourth angle of the quadrilateral.
- A85°,B85°, 8. E65°,F90°, 9. Q89°,R67°,
C65°,D G90°,H S102°,T
Find the value of nin each quadrilateral.
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Find the value of each variable.
- Two angles of a triangle are 17. In parallelogram ABCD, the measure
congruent and the measure of the of ABCis 165°. Find the measure
third angle is 120°. Find the measure of C.
of one the congruent angles.
N
MP
45 ° 55 °
n
R
S
T
30 ° 110 °
n
Y
X Z
45 °
n
D
E F
83 °
29 °
n
L
MO
P
120 ° 60 °
60 ° n
B
C
A
D
60 °
y°
x°
M
Q
N
O
75 ° P
75 ° 50 °
y°^45 °
x°
x° D
E
F
H
G
60 °
55 °^80 °
z°
y°
x°
BC
AD
110 °
n
P
Q R
S
nn
nn
If you extend a side of a triangle, you form an
exterior angle of the triangle.
- ACDis an exterior angle of ABC.
Find the measure of ACD. Explain
how you found your answer.
C B
A
D
45 °
47 °
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