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Exploring Circles and Their Circumference

Exploring Circles and Their Circumference

Assessment

Interactive Video

Mathematics

6th - 8th Grade

Practice Problem

Hard

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

Standards-aligned

Created by

Aiden Montgomery

FREE Resource

Standards-aligned

CCSS.7.G.B.4
,
CCSS.HSG.GMD.A.1
This video tutorial covers the concepts of circles, radius, diameter, and circumference. It explains how to calculate the radius and diameter of a circle, and how to find the circumference using pi. The tutorial includes practical examples and real-life applications, such as finding the circumference of a pizza or a pond. It also discusses the perimeter of semicircles, providing step-by-step calculations and emphasizing the importance of understanding these geometric concepts.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the radius of a circle if its diameter is 30 inches?

7.5 inches

15 inches

30 inches

60 inches

Tags

CCSS.7.G.B.4

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the radius of a circle is 8.2 cm, what is the diameter?

16.4 cm

4.1 cm

8.2 cm

12.3 cm

Tags

CCSS.7.G.B.4

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the value of pi as used in school calculations?

3.142

3.14

22/7

3.14159

Tags

CCSS.HSG.GMD.A.1

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you calculate the circumference of a circle using its radius?

C = 2πr

C = πd

C = πr^2

C = 2r

Tags

CCSS.7.G.B.4

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the circumference of a pizza with a radius of 8 inches?

16 inches

100.48 inches

25.12 inches

50.24 inches

Tags

CCSS.7.G.B.4

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Calculate the circumference of a cookie with a diameter of 15 cm.

15 cm

62.8 cm

30 cm

47.1 cm

Tags

CCSS.7.G.B.4

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the circumference of a plate with a radius of 6 inches?

18.84 inches

12 inches

24 inches

37.68 inches

Tags

CCSS.7.G.B.4

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