1.
Determine whether the triangles are similar. Explain why or why not.
A.
yes;
y
= 55
B.
yes;
x
= 85
C.
no;
y
= 65
D.
no;
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.
4
C.
14
D.
Hint
3.
If the triangles are similar, what is the value of
a
?
A.
8.4
B.
11.2
C.
4.48
D.
7
Hint
4.
If
what is the value of
x
?
A.
3.75
B.
6.67
C.
2.42
D.
1.35
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.
8 feet
B.
50 feet
C.
72 feet
D.
18 feet
Hint