Practice Page
Directions: Read carefully!

1.
Area ΔABC = 144 square units.
Find the area of ΔDBE in square units.

Choose:
9
16
36
48
M1

 

 

2.
The perimeters of two similar pentagons, ABCDE and FGHJK, are in the ratio of 3 to 2. Two corresponding sides are labeled x and 4.5 in length. Find HJ.

Choose:
6.75
4
3.5
3
M2

 

 

3.
Express the ratio of the area of ΔABC to the area of ΔEDC.

Choose:
m3t1
m3t2
m3t3
m3t4
M3
 

 

 

4.
Cube A has a side length of 8 inches and cube B has a side length of 2 inches. What is the ratio of the volumes of cube B to
cube
A?

Choose:
onefourth
onesixteenth
onethirty6
onesixty4
Mcube

 

 

5.
The ratio of the areas of two squares is 4 : 9. If the area of the larger square is 144 square inches, what is the length of a side of the smaller square?

Choose:
6"
8"
10"
12"
M11

 

 

6.
The triangles shown at the right are similar triangles. Find x.

Choose:
12
13
15
16
M6

 

 

7.
Find the ratio of the area of ΔDBE to the area of ΔABC.

Choose:
9over16
3over7
9over49 3over4
M7

 

 

8.
Given the graph at the right.
a) What is the ratio of similitude between
ΔABC and ΔADE ?
Choose:
half
2
onefourth
4

b)
What is the ratio of the areas of ΔABC to ΔADE ?

Choose:
onesixty4
onesixteenth
onefourth
half
M8
 
c)
What is the area of ΔABC ?
Choose:
2 sq. units
4 sq. units
8 sq. units
16 sq.units
 
d)
If the triangles are revolved about the y-axis, what will be the ratio of the volumes of the cones formed?
Choose:
onesixty4
onesixteenth
one8
onefourth
 
e)
What is the volume of the cone formed by the revolution of ΔABC about the y-axis, to the nearest tenth of a cubic unit?
Choose:
4.2 cu. units
8.4 cu. units
12.6 cu. units
25.1 cu. units

 

 

9.
ΔCAT and ΔDOG are shown at the right.
Find the length of the altitude to the hypotenuse in ΔDOG.

Choose:
4.8
7.2
8.4
8.6
M9

 

 

10.
In the diagrams shown below, ΔABC has been dilated by a scale factor of thirdto produce image ΔDEF. What is the area of the image ΔDEF ?
Choose:
9 sq.units
18 sq.units
21 sq.units
27 sq.units
 
M109

 

 

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