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Week 8: Pre-Algebra - Circumference and Area of Circles

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Last updated about 2 years ago
9 questions
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Welcome Back! Week 8: Pre-Algebra - Circumference and Area of Circles has two short video (and an optional Pi Song Video) and about 13 questions.

Be sure to attempt all the questions and submit when you are finished. Please contact me through the comment feature or send an email to rshaw@fergflor if you have any questions.
What is Pi?

Anchor Charts



Circles: Circumference and Area Video Lesson
The Pi Song
Question 1
1.

Match the parts of circles:

Draggable itemarrow_right_altCorresponding Item
Circumference
arrow_right_alt
The line from the center to the edge
Diameter
arrow_right_alt
The line across the center of the circle
arrow_right_alt
arrow_right_alt
Question 2
2.

What is the radius if the diameter is 8ft?

Question 3
3.

What is the radius if the diameter is 18 yards?

Question 4
4.

What is the diameter if the radius is 7 inches?

Question 5
5.

What is the diameter if the radius is 5 yards?

Question 6
6.

What is the area if the diameter is 18 yards?

Question 7
7.

What is the circumference of the circle? Leave your answer in terms of π. Use C = πd or C = 2πr.



Question 8
8.

Question 9
9.

How long did this lesson take you to complete today?

Area
Around the outside of the circle
Radius
The inside of the circle
What is the area of the circle? Leave your answer in terms of π. Use A = πr2


5π centimeters2
10π centimeters2
20π centimeters2
100π centimeters2
400π centimeters2