Math Study Sheet

Study Sheet for Math Quiz

1.  What is the formula for the Circumference of a Circle? 

C= π x d

2.  What is the formula for the Area of a Circle?

A = π x r²

3.  What is the definition of PI?

PI is the ratio of a circle’s circumference to its diameter. 

4.  What is the numerical value of PI to two decimal places?

The value of PI is 3.14.

5. What does radius mean?

Radius is the distance from the center of a circle to the edge.  

6.  What does diameter mean?

Diameter is the distance across the circle.

7.  What does circumference mean?

Circumference is the distance around the edge of a circle.

8.  What does area mean?

Area is the amount of space inside the boundary of a shape.

9. What is the definition of a circle?

A circle is the set of all points that are equidistant from a center point.

10.  What kind of number is PI and what does that mean?

PI is an irrational number which means that it is a decimal that goes on forever without repeating.