What is the value of $$\frac{22}{7}$$ as an approximation for $$\\pi$$ ?

$$\frac{22}{7}$$ is an approximation for $$\\pi$$ , which is approximately 3.14.

What is the relationship between diameter and radius?

The diameter is twice the radius: $$d = 2r$$ .

How do you convert the radius to diameter?

To convert the radius to diameter, multiply the radius by 2: $$d = 2r$$ .

What is the area of a circle with a radius of 3 cm?

The area is $$A = \\pi (3)^2 = 28.26 cm^2$$ (using $$\\pi \approx 3.14$$ ).

What is the approximate value of $$\\pi$$ ?

The approximate value of $$\\pi$$ is 3.14.

If the area of a circle is 50.24 cm², what is the radius?

To find the radius, use the formula: $$r = \sqrt{\frac{A}{\\pi}} = \sqrt{\frac{50.24}{3.14}} \approx 4 cm$$ .

What is the formula for the circumference of a circle?

The formula for the circumference is $$C = \\pi d$$ or $$C = 2 \\pi r$$ .

What is the area of a circle with a diameter of 12 cm?

The radius is 6 cm, so the area is $$A = \\pi (6)^2 = 113.04 cm^2$$ (using $$\\pi \approx 3.14$$ ).

What is the term for the distance around a circle?

The term for the distance around a circle is called the circumference.

Area of a circle Flashcards

Student preview

15 questions

Show all answers

1.

FLASHCARD QUESTION

Front

What is the formula to find the area of a circle?

Back

Tags

CCSS.7.G.B.4

2.

FLASHCARD QUESTION

Front

What does the term 'radius' mean in relation to a circle?

Back

The radius is the distance from the center of the circle to any point on its circumference.

3.

FLASHCARD QUESTION

Front

Back

Tags

CCSS.HSG.GMD.A.1

4.

FLASHCARD QUESTION

Front

What is the diameter of a circle?

Back

The diameter is a line segment that passes through the center of the circle and connects two points on its circumference. It is twice the length of the radius.

Tags

CCSS.HSG.C.A.2

5.

FLASHCARD QUESTION

Front

If the radius of a circle is 7 cm, what is the area?

Back

Tags

CCSS.7.G.B.4

6.

FLASHCARD QUESTION

Front

What is the circumference of a circle?

Back

Tags

CCSS.7.G.B.4

7.

FLASHCARD QUESTION

Front

If the diameter of a circle is 10 cm, what is the radius?

Back

The radius is half of the diameter, so the radius is 5 cm.

Tags

CCSS.7.G.B.4

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

10 questions

Tone, Mood, and Purpose

Flashcard

•

6th Grade

10 questions

Disney descendants flashcard

Flashcard

•

KG

10 questions

Bacteria and fungi

Flashcard

•

6th Grade

12 questions

Newton's Laws Vocab

Flashcard

•

6th Grade

10 questions

Skeletal System Review

Flashcard

•

5th Grade

15 questions

Similar Figures and Solving Proportions

Flashcard

•

7th Grade

15 questions

Mechanical Wave Interactions Vocab

Flashcard

•

6th Grade

16 questions

Physical Geography

Flashcard

•

6th Grade

Popular Resources on Wayground

10 questions

5.P.1.3 Distance/Time Graphs

Quiz

•

5th Grade

10 questions

Fire Drill

Quiz

•

2nd - 5th Grade

20 questions

Equivalent Fractions

Quiz

•

3rd Grade

15 questions

Hargrett House Quiz: Community & Service

Quiz

•

5th Grade

20 questions

Main Idea and Details

Quiz

•

5th Grade

20 questions

Context Clues

Quiz

•

6th Grade

20 questions

Inferences

Quiz

•

4th Grade

15 questions

Equivalent Fractions

Quiz

•

4th Grade

Discover more resources for Mathematics

20 questions

Box and Whisker Plots

Quiz

•

6th Grade

20 questions

Graphing Inequalities on a Number Line

Quiz

•

6th - 9th Grade

10 questions

Exploring Basic Probability Concepts

Interactive video

•

6th - 10th Grade

20 questions

Ratios/Rates and Unit Rates

Quiz

•

6th Grade

15 questions

Distributive Property & Review

Quiz

•

6th Grade

21 questions

Coordinate Plane & Plotting Points

Quiz

•

6th Grade

10 questions

Area and Circumference of a Circle

Quiz

•

6th Grade

15 questions

One- Step Equations

Quiz

•

6th Grade