Circles: Area vs Circumference

Circles: Area vs Circumference

Assessment

Flashcard

Mathematics

9th - 12th Grade

Hard

CCSS
7.G.B.4, HSG.GMD.A.1

Standards-aligned

Created by

Wayground Content

FREE Resource

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15 questions

Show all answers

1.

FLASHCARD QUESTION

Front

What is the formula for the circumference of a circle?

Back

C = 2πr or C = πd, where r is the radius and d is the diameter.

Tags

CCSS.7.G.B.4

2.

FLASHCARD QUESTION

Front

How do you calculate the area of a circle?

Back

A = πr², where r is the radius.

Tags

CCSS.7.G.B.4

3.

FLASHCARD QUESTION

Front

What is the relationship between diameter and radius?

Back

The diameter is twice the radius (d = 2r).

Tags

CCSS.7.G.B.4

4.

FLASHCARD QUESTION

Front

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

Back

The diameter is 10 cm.

Tags

CCSS.7.G.B.4

5.

FLASHCARD QUESTION

Front

What is the circumference of a circle with a diameter of 20 cm?

Back

C = 20π cm or approximately 62.83 cm.

Tags

CCSS.7.G.B.4

6.

FLASHCARD QUESTION

Front

What is the radius of a circle with a circumference of 31.4 cm?

Back

The radius is 5 cm.

Tags

CCSS.7.G.B.4

7.

FLASHCARD QUESTION

Front

What does the term 'circumference' refer to?

Back

Circumference is the distance around the circle.

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