AnswersMASTER COURSE GeometryArea of a Circle and a Sector

Area of a Circle and a Sector — Quiz Answers

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The smallest of the three circles with center cap d has a radius of 8 inches and CB is equal to BA is equal to 4 inches. What is the sum of the areas of all three circles?

A
80 pi in. squared
B
464 pi in. squared
C
96 pi in. squared
D
208 pi in. squared
22
Free Preview

The smallest of the three circles with center cap d has a radius of 8 inches and CB is equal to BA is equal to 4 inches. What is the sum of the areas of all three circles?

A
464 pi in. squared
B
80 pi in. squared
C
208 pi in. squared
D
96 pi in. squared
23

What is the value of r ?

A
r is equal to 16 ft
B
r is equal to 4 ft
C
r is equal to 8 ft
D
r is equal to 32 ft
24

The smallest of the three circles with center cap d has a radius of 8 inches and CB is equal to BA is equal to 4 inches. What is the sum of the areas of all three circles?

A
464 pi in. squared
B
208 pi in. squared
C
96 pi in. squared
D
80 pi in. squared
25

What is the sum of the areas of circle cap c and circle cap d ?

A
49 pi units squared
B
98 pi units squared
C
14 pi units squared
D
7 pi units squared
26

Fiona draws a circle with a diameter of 14 meters. What is the area of Fiona’s circle?

A
14 pi m squared
B
7 pi m squared
C
28 pi m squared
D
49 pi m squared
27

In circle cap g , r is equal to 3 units. Maria draws a circle with double the area of circle cap g What is the area of Maria’s circle?

A
12 pi units squared
B
9 pi units squared
C
6 pi units squared
D
18 pi units squared
28

Line segment WX is the radius of circle cap x , and line segment ZY is the radius of circle cap y Points cap w , cap x , cap c , cap y , and cap z are all on line segment WZ What is the area of circle cap c , which passes though points cap w and cap z ?

A
324 pi units squared
B
1296 pi units squared
C
81 pi units squared
D
164 pi units squared
29

A circular garden with a radius of 8 feet is surrounded by a circular path with a width of 3 feet. What is the approximate area of the path alone? Use 3 point 1 4 for pi

A
172 point 7 0 ft squared
B
379 point 9 4 ft squared
C
200 point 9 6 ft squared
D
178 point 9 8 ft squared
30

Which statements are true regarding the area of circle cap d ? Choose two correct answers.

A
The area of circle cap d is 36 pi cm squared .
B
The area of the circle depends on the central angle.
C
The area of the circle depends on the square of the radius.
D
The area of circle cap d is 324 pi cm squared .
E
The area of the circle depends on the square of pi.
31

In circle cap v , r is equal to 14 ft. What is the area of circle cap v ?

A
28 pi ft squared
B
49 pi ft squared
C
14 pi ft squared
D
196 pi ft squared
32

What is the sum of the areas of circle cap c and circle cap d ?

A
98 pi units squared
B
14 pi units squared
C
49 pi units squared
D
7 pi units squared
33

Which statements are true regarding the area of circle cap d ? Choose two correct answers.

A
The area of circle cap d is 36 pi cm squared .
B
The area of the circle depends on the square of the radius.
C
The area of the circle depends on the square of pi.
D
The area of circle cap d is 324 pi cm squared .
E
The area of the circle depends on the central angle.
34

In circle cap g , r is equal to 3 units. Maria draws a circle with double the area of circle cap g What is the area of Maria’s circle?

A
18 pi units squared
B
12 pi units squared
C
6 pi units squared
D
9 pi units squared
35

Line segment WX is the radius of circle cap x , and line segment ZY is the radius of circle cap y Points cap w , cap x , cap c , cap y , and cap z are all on line segment WZ What is the area of circle cap c , which passes though points cap w and cap z ?

A
81 pi units squared
B
164 pi units squared
C
324 pi units squared
D
1296 pi units squared
36

Line segment WX is the radius of circle cap x , and line segment ZY is the radius of circle cap y Points cap w , cap x , cap c , cap y , and cap z are all on line segment WZ What is the area of circle cap c , which passes though points cap w and cap z ?

A
164 pi units squared
B
1296 pi units squared
C
81 pi units squared
D
324 pi units squared
37

Which statements are true regarding the area of circle cap d ? Choose two correct answers.

A
The area of circle cap d is 36 pi cm squared .
B
The area of circle cap d is 324 pi cm squared .
C
The area of the circle depends on the square of pi.
D
The area of the circle depends on the square of the radius.
E
The area of the circle depends on the central angle.
38

The smallest of the three circles with center cap d has a radius of 8 inches and CB is equal to BA is equal to 4 inches. What is the sum of the areas of all three circles?

A
96 pi in. squared
B
464 pi in. squared
C
208 pi in. squared
D
80 pi in. squared
39

The circular face of a watch has an area that measures between 800 and 900 square millimeters. What could be the radius of the watch face? Use 3 point 1 4 for pi

A
14 mm
B
15 mm
C
16 mm
D
17 mm
40

In circle cap v , r is equal to 14 ft. What is the area of circle cap v ?

A
49 pi ft squared
B
14 pi ft squared
C
196 pi ft squared
D
28 pi ft squared

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