1.
Which pair of ratios is equivalent?
A.
1:2 and 3:4
B.
4 to 6 and 8 to 10
C.
3 to 7 and 7 to 34
D.
5:6 and 15:18
Hint
2.
Identify the figure that is congruent to rectangle
ABCD
.
A.
B.
C.
D.
Hint
3.
Which set of figures must be congruent?
A.
two pentagons with all sides 2 in. long
B.
two quadrilaterals with all sides 2 in. long
C.
two triangles with all sides 2 in. long
D.
all answers are correct
Hint
4.
A triangle has sides of 6 in., 9 in., and 15 in. It is scaled to make a new triangle with one side that is 3 in. What might the scale factor be?
A.
B.
C.
all answers are correct
D.
Hint
5.
If the area of a parallelogram is
lh
, what is the area of the parallelogram after it has been scaled by a factor of 4?
A.
16
lh
B.
4
lh
C.
lh
+ 16
D.
lh
+ 4
Hint
6.
Find the area of the triangle after it has been scaled by a factor of
.
A.
17.32 cm
2
B.
10 cm
2
C.
23.09 cm
2
D.
13.33 cm
2
Hint
7.
Find the surface area of the square pyramid after it has been scaled by a factor 3.
A.
252 cm
2
B.
1,024 cm
2
C.
84 cm
2
D.
756 cm
2
Hint
8.
These two figures are similar. What is the scale factor from the small figure to the large figure?
A.
7
B.
5
C.
6
D.
4
Hint