Quiz about Unit 4 Test

Question 1

Definition: line segment that extends from the center of a circle to any point on the circle

Accepted Answer

radius

Answer

diameter

Answer

circumference

Answer

area

Question 2

Definition: collection of points that are equidistant from a fixed point called the center

Accepted Answer

circle

Answer

radius

Answer

diameter

Answer

arc

Question 3

Definition: line segment that connects a point on a circle to a point on the other side of the circle and passes through the center

Accepted Answer

diameter

Answer

radius

Answer

circle

Answer

sector

Question 4

Definition: a portion of a circle's circumference

Accepted Answer

arc

Answer

radius

Answer

diameter

Answer

sector

Question 5

Definition: a portion of a circle's area

Accepted Answer

sector

Answer

radius

Answer

diameter

Answer

arc

Question 6

Definition: the length around the outside of a full circle

Accepted Answer

circumference

Answer

arc length

Answer

sector area

Answer

area

Question 7

Definition: the space taken up by a full circle

Accepted Answer

area

Answer

arc length

Answer

sector area

Answer

circumference

Question 8

What is the degree measure of a full circle?

Accepted Answer

$$360\degree$$

Answer

$$0\degree$$

Answer

$$90\degree$$

Answer

$$180\degree$$

Question 9

5 cm is the...

Accepted Answer

radius

Answer

diameter

Answer

circumference

Answer

area

Question 10

10 units is the...

Accepted Answer

diameter

Answer

radius

Answer

arc length

Answer

sector

Question 11

If a circle has a radius of 8.5 cm, what is the diameter?

Accepted Answer

$$17\ cm$$

Answer

$$4.25\ cm$$

Answer

$$4.25\ cm^2$$

Answer

$$17\ cm^2$$

Question 12

If a circle has a diameter of 13 yd, what is the radius?

Accepted Answer

$$6.5\ yd$$

Answer

$$26\ yd$$

Answer

$$6.25\ yd^2$$

Answer

$$26\ yd^2$$

Question 13

What is the circumference of this circle?

Accepted Answer

$$94.2\ cm$$

Answer

$$47.31\ cm$$

Answer

$$706.5\ cm$$

Answer

$$706.5\ cm^2$$

Question 14

What is the circumference of this circle?

Accepted Answer

$$25.12\ in$$

Answer

$$50.24\ in$$

Answer

$$200.96\ in$$

Answer

$$360\degree$$

Question 15

What is the area of this circle?

Accepted Answer

$$706.5\ cm^2$$

Answer

$$2826\ cm^2$$

Answer

$$176.625\ cm^2$$

Answer

$$47.1\ cm^2$$

Question 16

What is the area of this circle?

Accepted Answer

$$50.24\ in^2$$

Answer

$$12.56\ in^2$$

Answer

$$200.96\ in^2$$

Answer

$$25.12\ in^2$$

Question 17

If the circumference of a circle is 50.24 m, what is the radius?

Accepted Answer

$$8\ m$$

Answer

$$16\ m$$

Answer

$$4\ m$$

Answer

$$2.8\ m$$

Question 18

If the circumference of a circle is 39.25 ft, what is the diameter?

Accepted Answer

$$12.5\ ft$$

Answer

$$6.25\ ft$$

Answer

$$19.625\ ft$$

Answer

$$3.14\ ft$$

Question 19

If the area of a circle is 153.86 square yards, what is the radius?

Accepted Answer

$$7\ yd$$

Answer

$$49\ yd$$

Answer

$$8\ yd$$

Answer

$$64\ yd$$

Question 20

If the area of a circle is 490.625 square feet, what is the diameter?

Accepted Answer

$$25\ ft$$

Answer

$$156.25\ ft\ $$

Answer

$$12.5\ ft$$

Answer

$$5\ ft$$

Question 21

What is the arc length of the shaded region?

Accepted Answer

$$65.94\ ft$$

Answer

$$75.36\ ft$$

Answer

$$37.68\ ft$$

Answer

$$32.97\ ft$$

Question 22

What is the area of the shaded sector?

Accepted Answer

$$56.52\ yd^2$$

Answer

$$452.16\ yd^2$$

Answer

$$1808.64\ yd^2$$

Answer

$$226.08\ yd^2$$

Question 23

You need to buy a cover for a circular pool that has a diameter of 30 feet. Which of the following is the smallest cover that would fit?

Accepted Answer

$$710\ ft^2$$

Answer

$$700\ ft^2$$

Answer

$$720\ ft^2$$

Answer

$$730\ ft^2$$

Question 24

A sprinkler is set to cover one corner of a yard. The water reaches out 14 feet and runs a total of 120 degrees. What is the area of the ward that will be watered?

Accepted Answer

$$205.14\ ft^2$$

Answer

$$615.44\ ft^2$$

Answer

$$87.92\ ft^2$$

Answer

$$29.31\ ft^2$$

Question 25

When creating a circular garden, you decide to enclose it with a fence. How many square feet of fence will you need to purchase is the radius is 28 feet? Assume that fencing is only sold in 1 foot increments.

Accepted Answer

$$176\ ft$$

Answer

175.84 ft

Answer

$$176\ ft^2$$

Answer

$$175.84\ ft^2$$

Question 26

A 3-foot door swings open to 165 degrees. What area of the floor is swept by the door?

Accepted Answer

$$12.95\ ft^2$$

Answer

$$18.84\ ft^2$$

Answer

$$28.26\ ft^2$$

Answer

$$8.64\ ft^2$$

Question 27

The size of the pizza you have ordered is 16 inches in diameter. If you eat 3 of 8 slices, how much have you eaten (in square inches)?

Accepted Answer

$$75.36\ in^2$$

Answer

$$200.96\ in^2$$

Answer

$$803.84\ in^2$$

Answer

$$301.44\ in^2$$

Question 28

When installing a deck around a circular pool, you want to cover only 70 degrees. If the pool is 25 feet in diameter, what would be the arc length of the deck.

Accepted Answer

15.26 ft

Answer

78.5 ft

Answer

157 ft

Answer

30.53 ft

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