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Circumference and Areas of a Circle

Authored by Shaun Heffernan

Mathematics

8th Grade

CCSS covered

Used 2+ times

Circumference and Areas of a Circle
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15 questions

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1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

What is the formula to calculate the circumference of a circle?

C = Pi * d

C = Pi * r

C = 2 * Pi * r

C = Pi * r^2

Tags

CCSS.7.G.B.4

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

What does 'Pi times diameter' calculate in relation to a circle?

Radius

Circumference

Diameter

Area

Tags

CCSS.7.G.B.4

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

What does squaring a number mean?

Adding it to itself

Multiplying it by itself

Multiplying it by 2

Dividing it by itself

Tags

CCSS.6.EE.A.1

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

What common mistake do students make when learning to find the area of a circle?

Using the diameter instead of the radius

Forgetting to use Pi in the calculation

Confusing radius with diameter

Multiplying the radius by 2 instead of squaring it

Tags

CCSS.7.G.B.4

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

How do you calculate the area of a circle?

A = Pi * r

A = 2 * Pi * r

A = Pi * d^2

A = Pi * r^2

Tags

CCSS.7.G.B.4

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

What is the relationship between the diameter and the radius of a circle?

Radius is half the diameter

Diameter is half the radius

Radius is double the diameter

Diameter is double the radius

Tags

CCSS.7.G.B.4

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

What is the diameter of a circle if its radius is 8 meters?

32 meters

16 meters

8 meters

4 meters

Tags

CCSS.7.G.B.4

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