AnswersIntegrated Math II FullArea of a Circle

Area of a Circle — Unit test Answers

25 verified answers
1
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What is the radius of this circle if the circumference is cm? cm

Question illustration
A
3 cm
B
9 cm
C
18 cm
D
36 cm
2
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What is the measure of SRT?

Question illustration
A
69 degrees
Option A
B
79 degrees
Option B
C
99 degrees
Option C
D
101 degrees
Option D
3

Which statement is true about ?

Question illustration
A
It is supplementary to .
Option A
B
It is complementary to .
Option B
C
It is congruent to .
Option C
D
It is linear to .
Option D
4

What is the area of the triangle?

Question illustration
A
216 centimeters squared
Option A
B
270 centimeters squared
Option B
C
360 centimeters squared
Option C
D
540 centimeters squared
Option D
5

The diameter of a circle is 4 cm. Which equation can be used to find its circumference?

A
C = pi times 2
Option A
B
C = pi times 4
Option B
C
C = StartFraction pi times 4 over 2 EndFraction
Option C
D
C = StartFraction pi times 4 over 4 EndFraction
Option D
6

What is the area of a circle with a radius of 7 cm? (Use 3.14 for and round to the nearest tenth.)

Question illustration
A
38.5 centimeters squared
Option A
B
44.0 centimeters squared
Option B
C
150.0 centimeters squared
Option C
D
153.9 centimeters squared
Option D
7

For which polygon is the sum of the interior angles equal to 720?

A
quadrilateral
B
pentagon
C
hexagon
D
septagon
8

Which set of three angles could represent the interior angles of a triangle?

A
19 degrees, 70 degrees, 91 degrees
Option A
B
47 degrees, 12 degrees, 31 degrees
Option B
C
50 degrees, 20 degrees, 20 degrees
Option C
D
25 degrees, 25 degrees, 100 degrees
Option D
9

What is the measure of ?

Question illustration
A
41°
B
49°
C
51°
D
61°
10

Pascal wants to find the sum of the measures of the interior angles of a polygon that has n sides. How could he do this?

A
Multiply by .
Option A
B
Multiply by
Option B
C
Multiply by
Option C
D
Multiply by .
Option D
11

Two lengths of a triangle are shown. Which could be the length of ?

Question illustration
A
11 ft
B
13 ft
C
15 ft
D
18 ft
12

What is the area of the parallelogram?

Question illustration
A
48 inches squared
Option A
B
80 inches squared
Option B
C
112 inches squared
Option C
D
140 inches squared
Option D
13

A circle has a diameter of 4 inches. Which statement about the area and circumference of the circle is true?

A
A comparison of the area and circumference of the circle is not possible because there is not enough information to find both.
B
The numerical values of the circumference and area are equal.
C
The numerical value of the circumference is greater than the numerical value of the area.
D
The numerical value of the circumference is less than the numerical value of the area.
14

What is the value of x in triangle PQR below?

Question illustration
A
86 degrees
Option A
B
94 degrees
Option B
C
132 degrees
Option C
D
142 degrees
Option D
15

Cecile drew a 4-sided figure. It had 2 sides that were 3.4 centimeters long and 2 sides that were 3.3 centimeters long. It had at least 3 right angles. Which best describes the figure she drew?

A
square
B
rectangle that is not a square
C
quadrilateral that is not a parallelogram
D
trapezoid
16

What is the measure of ?

Question illustration
A
50 degrees
Option A
B
80 degrees
Option B
C
100 degrees
Option C
D
130 degrees
Option D
17

Tinh has a triangle with side lengths 12 mm, 15 mm, and 18 mm. He wants to reduce the triangle by one-third, so he divides each side length and each angle measure by 3. Which describes Tinh’s reduction?

A
Tinh’s reduction is incorrect; he should have only divided the side lengths by 3.
B
Tinh’s reduction is incorrect; he should have only divided the angle measures by 3.
C
Tinh’s reduction is incorrect; he should have multiplied the side lengths by 3 instead.
D
Tinh’s reduction is incorrect; he should have multiplied the angle measures by 3 instead.
18

Two angles in a triangle measure and . What is the measure of the third angle?

Question illustration
A
35 degrees
Option A
B
55 degrees
Option B
C
145 degrees
Option C
D
215 degrees
Option D
19

A road bike has a wheel diameter of 622 mm. What is the circumference of the wheel? Use 3.14 for .

Question illustration
A
976.24 mm
B
976.54 mm
C
1,852.08 mm
D
1,953.08 mm
20

A circle has a diameter of 3 meters. Which statement about the circumference and area is true?

A
A comparison of the area and circumference is not possible since the area cannot be determined.
B
The numerical value of the circumference and area are equal.
C
The numerical value of the circumference is greater than the numerical value of the area.
D
The numerical value of the circumference is less than the numerical value of the area.

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