Find the area of a circle with a radius of 7 inches. Leave your answer in terms of $$\text{π}$$ .

The area is $$A = \text{π}(7^2) = 49\text{π}$$ square inches.

What is the diameter of a circle with a circumference of 12π cm?

The diameter is $$d = \frac{C}{\text{π}} = \frac{12\text{π}}{\text{π}} = 12$$ cm.

What part of a circle is defined as the distance from the center to any point on the circle?

This part is called the radius.

If the area of a circle is 36π square meters, what is the radius?

To find the radius, use the area formula: $$A = \text{π}r^2$$ . Thus, $$36\text{π} = \text{π}r^2$$ , leading to $$r^2 = 36$$ , so $$r = 6$$ meters.

What is the circumference of a circle with a diameter of 10 cm?

The circumference is $$C = \text{π}d = \text{π}(10) = 10\text{π}$$ cm.

What is the area of a circle with a diameter of 8 inches? Leave your answer in terms of $$\text{π}$$ .

The radius is 4 inches, so the area is $$A = \text{π}(4^2) = 16\text{π}$$ square inches.

What is the term for the longest distance across a circle through its center?

This term is called the diameter.

If a circle has a radius of 2.5 feet, what is its area?

The area is $$A = \text{π}(2.5^2) = 6.25\text{π}$$ square feet.

What is the circumference of a circle with a radius of 1 meter?

The circumference is $$C = 2\text{π}(1) = 2\text{π}$$ meters.

Unit 10B Flashcard #1 Review Flashcards

Student preview

15 questions

Show all answers

1.

FLASHCARD QUESTION

Front

What is the formula for the area of a circle?

Back

2.

FLASHCARD QUESTION

Front

What is the circumference of a circle?

Back

3.

FLASHCARD QUESTION

Front

What is the relationship between diameter and radius?

Back

4.

FLASHCARD QUESTION

Front

If a circle has a radius of 5 cm, what is its diameter?

Back

5.

FLASHCARD QUESTION

Front

What is the radius of a circle with a diameter of 16 cm?

Back

6.

FLASHCARD QUESTION

Front

Back

7.

FLASHCARD QUESTION

Front

What is the circumference of a circle with a radius of 3 meters?

Back

Access all questions and much more by creating a free account

Create resources

Host any resource

Get auto-graded reports

Continue with Google

Continue with Email

Continue with Classlink

Continue with Clever

or continue with

Microsoft

Apple

Others

Already have an account?

Similar Resources on Wayground

15 questions

Yr7-02-Networks-Flashcards

Flashcard

•

6th Grade

13 questions

Pressure Overview

Flashcard

•

7th Grade

10 questions

Spanish American War

Flashcard

•

5th Grade

10 questions

Basic Concepts of Probability

Flashcard

•

8th Grade

8 questions

Graphic Novels Vocabulary

Flashcard

•

7th Grade

10 questions

Avaliação 8º ANO

Flashcard

•

8th Grade

10 questions

Mathematics: Real and Rational Numbers

Flashcard

•

7th Grade

15 questions

Full Blast 3 1b

Flashcard

•

6th - 8th Grade

Popular Resources on Wayground

8 questions

Spartan Way - Classroom Responsible

Quiz

•

9th - 12th Grade

15 questions

Fractions on a Number Line

Quiz

•

3rd Grade

14 questions

Boundaries & Healthy Relationships

Lesson

•

6th - 8th Grade

20 questions

Equivalent Fractions

Quiz

•

3rd Grade

3 questions

Integrity and Your Health

Lesson

•

6th - 8th Grade

25 questions

Multiplication Facts

Quiz

•

5th Grade

9 questions

FOREST Perception

Lesson

•

KG

20 questions

Main Idea and Details

Quiz

•

5th Grade

Discover more resources for Mathematics

14 questions

Volume of rectangular prisms

Quiz

•

7th Grade

20 questions

Graphing Inequalities on a Number Line

Quiz

•

6th - 9th Grade

18 questions

Identifying Radius/Diameter

Quiz

•

7th Grade

20 questions

Complementary and Supplementary Angles

Quiz

•

7th Grade

15 questions

Area and Circumference of a Circle

Quiz

•

7th Grade

21 questions

Circumference of a Circle

Quiz

•

7th Grade

20 questions

Mean, Median, Mode and Range

Quiz

•

5th - 7th Grade

20 questions

Slope Intercept Form

Quiz

•

7th - 8th Grade