Circumference and Area of a Circle

What does it mean when you "square a number" ?

• It means you multiply it by 2

• It means you multiply it by itself

• It means you have to divide it by itself

• It means you have to divide it by 2

Select all the TRUE statements.

How do you get the diameter?

• Multiply the radius by itself

• Multiply the radius by 2

• Divide the radius by 2

• Divide the radius by 3

Area is always a ​ (a)   dimensional ​ (b)   .

• 2
• quantity
• 1
• circumference
• origin

How do you find the radius when given the diameter?

• Subtract the diameter 2 times

• Add the diameter 2 times

• Divide the diameter by 2

• Multiply the diameter by 2

Now that you know the radius, use the formula to find the area of the pizza.

Use 3.14 for pi.

Only type in the numerical value - NO LETTERS/WORDS

Area of a Circle: ​ (a)  

Circumference of a Circle: ​ (b)