1.
Determine whether the triangles are similar. Explain why or why not.
A.
yes;
y
= 55
B.
no;
y
= 65
C.
no;
x
= 85
D.
yes;
x
= 85
Hint
2.
A 6-foot tall person casts a 2.5-foot long shadow at the same time that a building casts a 40-foot long shadow. How tall is the building?
A.
96 feet
B.
16 feet
C.
104 feet
D.
600 feet
Hint
3.
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.
18 feet
C.
72 feet
D.
50 feet
Hint
4.
If
what is the value of
x
?
A.
1.5 m
B.
7.5 m
C.
4.25 m
D.
106.25 m
Hint
5.
If
what is the value of
x
to the nearest tenth?
A.
0.5 feet
B.
1.92 feet
C.
1.3 feet
D.
1.8 feet
Hint