# Identify Circles Picture Quiz

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| By Brittney22Thomas
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Brittney22Thomas
Community Contributor
Quizzes Created: 2 | Total Attempts: 4,131
Questions: 10 | Attempts: 484

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Welcome to the "Identify Circles Picture Quiz," a visually engaging challenge designed to test your observation skills and knowledge of geometric shapes! Are you ready to put your circle-spotting prowess to the test? This quiz is not just about recognizing basic shapes; it's an exploration into the world of circles that will have you scrutinizing images to identify the circular patterns hidden within. As students, you will find the radius, diameter and circumference of various circles. Students will also identify radii, diameters, center points, chords, and arcs of circles.
As you progress through the quiz, you'll encounter a Read morediverse array of images, each containing circles in various contexts. From everyday objects to intricate designs, your task is to pinpoint and select the circles within the given pictures. Whether you're a geometry enthusiast, an art aficionado, or just someone looking for a fun visual challenge, this quiz offers an exciting opportunity to enhance your ability to identify circles in different settings.
Challenge yourself, compete with friends, or use it as an educational tool to reinforce your understanding of circles. As you dive into this interactive quiz adventure, remember: the world is full of circles waiting to be noticed. Get ready to exercise your visual acumen and embark on a journey of shape recognition like never before!

## Circles Questions and Answers

• 1.

### Which line is the diameter of this circle?

• A.

RP

• B.

SQ

• C.

RQ

• D.

PQ

C. RQ
Explanation
The diameter of a circle stretches all the way across, from one edge to the other, crossing through the center point (P). Such a line in this circle is RQ. Therefore, it is the diameter here.

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• 2.

### Which point is the center point of this circle?

• A.

Point R

• B.

Point P

• C.

Point Q

• D.

Point S

B. Point P
Explanation
The center point is the point through which the diameter passes, therefore point P is the center point of this circle.

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• 3.

### What is a radius of this circle?

• A.

RQ

• B.

SPQ

• C.

SR

• D.

SP

D. SP
Explanation
A radius is a line that goes from the edge of the circle to the center point. It is half of the diameter. Among the given options, one such line is SP.

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• 4.

### RS is a(n):

• A.

Arc

• B.

Chord

• C.

Center Point

• D.

A. Arc
Explanation
An arc is a portion of a curve in a circle. It is defined by two endpoints and the points on the circle between those endpoints. In this context, RS is an arc, because it is a portion of a curve in a circle.

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• 5.

### What is the length of the radius when the diameter is 4 cm long?

• A.

4 cm

• B.

2 cm

• C.

8 cm

• D.

12.56 cm

B. 2 cm
Explanation
The length of the radius can be found by dividing the diameter by 2, according to the formula for finding the radius of a circle. In this case, the diameter is given as 4 cm, so dividing it by 2 gives us a radius of 2 cm.

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• 6.

### What is the length of the diameter when the radius is 9 m?

• A.

28.26 m

• B.

9 m

• C.

18 m

• D.

56.52 m

C. 18 m
Explanation
The diameter of a circle is equal to twice the length of its radius. In this case, the radius is given as 9 m. Therefore, the length of the diameter would be 2 times 9 m, which equals 18 m.

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• 7.

### What is the length of the diameter of this circle?

• A.

16 cm

• B.

25.12 cm

• C.

16 m

• D.

8 cm

A. 16 cm
Explanation
The length of the diameter of a circle is equal to twice the radius. Since the answer given is 16 cm, it can be inferred that the radius of the circle is 8 cm. Therefore, the diameter is 16 cm.

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• 8.

### What is the length of the radius of this circle?

• A.

16 cm

• B.

4 cm

• C.

25.12 cm

• D.

8 cm

D. 8 cm
Explanation
The length of the radius of a circle is the distance from the center of the circle to any point on its circumference. In this case, the correct answer is 8 cm, which means that the distance from the center of the circle to any point on its circumference is 8 cm.

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• 9.

### Find the circumference.

50.24 cm
Explanation
The given answer of 50.24 cm is the correct circumference. The question asks to find the circumference, which is the distance around a circle. The given answer is in centimeters, indicating that the measurement is in units of length. Therefore, the correct answer is 50.24 cm, which represents the distance around the circle.

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• 10.

### How many radii are shown?

• A.

6

• B.

4

• C.

1

• D.

5

B. 4
Explanation
There are six radii shown in the given question. A radius is a line segment that connects the center of a circle to any point on its circumference. By counting the number of line segments that meet this criteria, we can determine that there are 4 radii shown.

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• Current Version
• Jan 28, 2024
Quiz Edited by
ProProfs Editorial Team
• Nov 17, 2010
Quiz Created by
Brittney22Thomas

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