Area of circle
What is roughly the value of pi?
3.14
If diameter is 12, what is the radius?
6
If the radius of a circle is 5, what is the area?
25 times pi, or 78.5
If you are given the diameter, how do you find out the radius?
Divide the diameter by 2
If diameter is 10, what is the radius?
5
What is the formula for volume of cylinder?
pi times radius squared times height
If the area of circle base is 15, height is 6, then what is the volume of cylinder?
90
True or false: If we know the radius, we can find out the area of any circle.
True
What is the formula for area of circle?
pi times radius squared
Multiply the circle area by the height
If the radius is 10, height is 10, what is the volume of cylinder?
about 3140
What are the two things we need to know to calculate the volume of any cylinder?
Radius, height