7th STAAR Review (RC3 - I)
Some questions (c) 2015 by Progress Testing.
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1
Using the map below, Andrew measured the distance between the picnic area and the historic
building as 3 centimeters.
Based on the scale provided, what is the distance between the picnic area and the historic
building?
A 0.75 miles
B
0.875 miles
C
0.92 miles
D 0.925 miles
2 Joseph built a model airplane. His model is
16 inches long, and the actual airplane is
128 feet long. What is the scale of his
model airplane?
A 1 inch = 4 feet
B
1 inch = 8 feet
C
1 inch = 16 feet
3 Which of the following statements is true?
A All right triangles are similar.
B
All equilateral triangles are similar.
C
All acute triangles are similar.
D All obtuse triangles are similar.
D 1 foot = 60 feet
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4 The Empire State Building is 1,250 feet tall
and the Chrysler Building is 925 feet tall.
7 A 30-foot-tall tree casts a 40-foot
shadow.
Mark is making a scale model of the
buildings. If he makes his model of the
Empire State Building 50 inches tall, how
many inches tall should he make his model
of the Chrysler Building?
A 25
B
29
C
35
D 37
If a nearby storage shed is 15 feet tall,
what is the length of the shed's shadow?
A 10 feet
5 On a trip to Washington D.C., Jose bought
a model of the Washington Monument. His
B
20 feet
C
25 feet
D 30 feet
model is 8 inches tall. If the scale of the
model is 1 inch to 70 feet, what is the
actual height of the Washington
Monument?
8 The two shapes below are similar.
A 70 feet
B
560 feet
C
700 feet
D 1,200 feet
6 Fort Worth and Houston are 240 miles
apart. The scale of a map of Texas is
1 inch = 50 miles. How far apart are Fort
Worth and Houston on the map?
A 4.4 inches
B
4.6 inches
C
4.8 inches
D 5.1 inches
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What is the length of ST?
A 3
B
4
C
5
D 6
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9
Figure LMN ∼ Figure QRS
11
The rectangles shown below are similar.
Which of the following completes this
proportion?
= Which of the following statements is true?
A QR
A The scale factor is 2.5.
B
LM
B
The scale factor is 6.
C
RS
C
Side BC is congruent to side FG.
D QS
10
D Side CD is congruent to side GH.
How does the size of a circular object
affect the relationship of the
circumference divided by the diameter?
A The size will affect the relationship
B
12
Mrs. Westhoven is having guests over for
dinner. She places a 4.5-foot-long table
and a 127-centimeter-long table side by
between circumference and diameter,
side to form one long table. What is the
because circumference changes at a
combined length of the two tables in
greater rate than diameter.
inches?
The size has no effect on the
A 96.3 inches
relationship between circumference
B
104 inches
C
123 inches
and diameter, because the two values
change independently.
C
The size will affect the relationship
D 131.5 inches
between circumference and diameter,
because the value of π changes as
circumference changes.
D The size has no effect on the
relationship between circumference
and diameter, because the ratio is
always equal to π.
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13
Kristen's perspective drawing of two buildings is shown below. In the drawing, the closer
building is 4 inches high. The horizon line is divided into two sections that measure 8 inches and
3 inches. Both buildings are perpendicular to the horizon line.
What is the height of the smaller distant building?
A
inches
B
1 inch
C
inches
D
inches
14
A rectangular field is 348 inches long and
7 yards wide. What is the perimeter of
the field in feet?
A 31.3 feet
B
50 feet
C
62.6 feet
D 100 feet
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15
Which choice illustrates a dilation of triangle VWZ with a scale factor of Page 7
?
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A
B
C
D
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16
Based on the diagram below, which of the following expressions is equal to π?
A
B
C
D
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