c)
T
W
X
V
U
50 ◦
45 ◦
a
b
c
d
5.Given the figure below.
A C G
D
E F
B
x
s
r
p
135 ◦ y
45 ◦
a)Find each of the unknown angles marked in the figure below. Find a reason that leads to the answer
in a single step.
b)Based on the results for the angles above, isEF∥CG?
6.Given the following diagrams:
Diagram A Diagram B
y
x
z
2,3x
2,5y 2,2z
y
x
z R,ky
R,kx
R,kz
Which diagram correctly gives a pair of similar triangles?
272 7.5. Chapter summary