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Exploring Area and Circumference of Circles

Exploring Area and Circumference of Circles

Assessment

Interactive Video

Mathematics

6th - 10th Grade

Practice Problem

Hard

CCSS
7.G.B.4

Standards-aligned

Created by

Mia Campbell

Used 1+ times

FREE Resource

Standards-aligned

CCSS.7.G.B.4
This video tutorial reviews the concepts of area and circumference of circles. It covers the parts of a circle, including the circumference, diameter, and radius, and explains how to calculate the radius from the diameter. The tutorial introduces formula charts for geometry and provides examples of calculating circumference and area using given dimensions. Students are encouraged to practice these calculations through provided problems, reinforcing their understanding of the material.

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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 10 units?

2.5 units

20 units

5 units

10 units

Tags

CCSS.7.G.B.4

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you find the radius from the diameter of a circle?

Square the diameter

Divide the diameter by 2

Multiply the diameter by 2

Multiply the diameter by π

Tags

CCSS.7.G.B.4

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Using the formula C = πd, what is the circumference of a circle with a diameter of 14 units?

43.96 units

44 units

28 units

88 units

Tags

CCSS.7.G.B.4

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the radius of a circle is 7 units, what is its circumference using C = 2πr?

14 units

14π units

44 units

22 units

Tags

CCSS.7.G.B.4

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What formula is used to calculate the circumference of a circle when the radius is known?

C = πd

A = πr^2

C = 2πr

A = πd^2

Tags

CCSS.7.G.B.4

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A circle's diameter is 20 units. What is its circumference?

20π units

40 units

62.8 units

10π units

Tags

CCSS.7.G.B.4

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the area of a circle with a radius of 4 units?

50.24 square units

16π square units

12.56 square units

25.12 square units

Tags

CCSS.7.G.B.4

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