What is the formula for the area of a circle?
A = πr²
What is the formula for the volume of a cylinder?
V = πr²h
What is the formula for the volume of a cone?
V = 1/3 πr²h or V= πr²h/3
What is the formula for the volume of a sphere?
V = 4/3 πr³
Is it a function? {(2, 3), (4, 5), (-2, 6)}
Hint: Does each input have exactly one output?
Yes
What does r represent?
Radius
If the radius of a cylinder is 3ft and the height is 11ft what is the volume? (Leave in terms of pi)
V = 99π ft³
If the radius of a cone is 7ft and the height is 9ft what is the volume? (Leave in terms of pi.)
147π ft³
If a sphere has a diameter of 6 cm what is its volume? (Leave in terms of pi)
36π cm³
Is it a function?
Hint: Does each input have exactly one output?
No
If the radius is 38 inches, what is the area of the circle using 3.14 as an approximation of π? (round to the nearest hundredth)
4534.16 inches²
If the radius of a cylinder is 11 inches and the height is 6 inches, what is the volume using 3.14 as an approximation of π? (round to the nearest hundredth)
V = 2279.64 inches³
A cylinder has a volume of 117π cm³. What is the volume of a cone with the same radius and height? (Leave in terms of pi.)
39π cm³
A sphere has a radius of 10 units. What is its volume? (round to the nearest hundredth)
4186.67 units³
Using variables, how do we write an equation of a line?
y= mx+b
If the diameter is 26ft, what is the area of the circle using 3.14 as an approximation of π? (round to the nearest hundredth)
530.66ft²
A cylindrical water bottle has a Volume of 112π inches³ and a height of 7 inches. What is the radius of the water bottle?
4 inches
If the radius of a cone is 2.2 meters and the height is 6 meters, what is the volume using 3.14 as an approximation of π? (round to the nearest hundredth)
30.4 meters³
A sphere has a radius of 4.9 inches. What is the volume to the nearest inch? (Leave in terms of pi and round to the nearest hundredth)
156.87π inches³
The _______ variable can most often be found on the y-axis.
Dependent Variable
If the diameter is 86 units what is the area of the circle? (Leave in terms of pi.)
1849π units²
Find the height of a cylinder where the area of the base is 49π ft² and the volume is 980ft.
20 ft
If the diameter of a cone is 78 cm and the height is 7 cm, what is the volume? (Leave in terms of pi.)
3549π cm³
A sphere has a diameter of 18 cm. What is its volume using 3.14 as an approximation of π? (round to the nearest hundredth)
3052.08 cm³
Avery runs one mile every day in hope of improving her time. What is the independent variable?
Days that she runs