1.
Determine whether the triangles are similar. Explain why or why not.
A.
no;
x
= 85
B.
no;
y
= 65
C.
yes;
y
= 55
D.
yes;
x
= 85
Hint
2.
A traffic sign casts a shadow 6 feet long while a mailbox next to it casts a shadow 3 feet long. If the traffic sign is 7 feet high, how tall is the mailbox?
A.
B.
14
C.
D.
4
Hint
3.
If
, what is length of
?
A.
5.6 m
B.
1.8 m
C.
1.6 m
D.
4.5 m
Hint
4.
If the triangles are similar, what is the value of
a
?
A.
8.4
B.
4.48
C.
7
D.
11.2
Hint
5.
A tree casts a 20-foot long shadow at the same time that a 3-foot tall mailbox post casts a 1.2-foot long shadow. How tall is the tree?
A.
50 feet
B.
8 feet
C.
72 feet
D.
18 feet
Hint