MATH
Geometry
Curriculum Based Assessment (CBA)
#6
1
The side measurements of a cube are doubled. What is the ratio of the surface area of
the original cube to the surface area of the larger one?
A
1 : 2
B
1 : 4
C
1 : 6
D 1 : 12
2
The volume of a cylinder is found by using the formula V = r2 h. If h is doubled, then
the volume is —
A
multiplied by 4.
B
increased by 8 cubic units.
C
multiplied by 2 .
D doubled.
3
The net of a right circular cone is shown below.
What is the surface area of this cone? The radius of the base is 6 inches.
A
180 square inches
B
216 ​ square inches
C
300 square inches
D 400 square inches
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4
Marco is a professional skydiver. He will be jumping out of a plane and landing in a
rectangular field that is 150 feet wide and 300 feet long. Marco is attempting to land
his jump in a circular target with a radius of 10 feet. What is the probability that Marco
will land in the target?
A
0.093
B
0.93
C
0.07
D 0.007
5
Logan has a bag of 20 marbles. 6 are blue, 5 are red, and the rest are green. Xavier
pulls out a marble, records what color it is, and puts it back. He then selects another
marble and records its color. What is the probability of pulling out a blue marble and
then a green marble?
A
15/20
B
27/200
C
15/400
D 6/9
6
A central angle of a circle with radius 6 inches intercepts an arc with a length of 2
inches. What is the probability that a point inside that circle lies in the sector created by
the central angle and its intercepted arc?
A
1/6
B
1/3
C
1/2
D 2/3
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7 What is the probability that a point in the square below in in the shaded region?
A
79%
B
21%
C
31%
D 69%
8 A city is planning to build a new art museum. One of the building plans they are
considering is shown below. The building is a right circular cylinder with four floors.
Each floor is parallel to the base of the building. The base of the building has a diameter
of 80 feet, and each floor is 25 feet tall.
What is the total floor area of the building in this plan? Use 3.14 for ​ .
A
2,800 square feet
B
7,850 square feet
C
20,096 square feet
D 80,384 square feet
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9 The diameter of a standard dart board is about 18 inches. The diameter of the inner
bullseye is 0.5 inches.
What is the probability that a dart hitting the dart board will land in the bullseye?
Express your answer as a decimal and round to the nearest ten-thousandth (four
decimal places).
Record your answer and fill in the bubbles on your answer document. Be sure to use
the correct place value.
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