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Project-Scope
BETTER CASE FOR YOUR PHONE CASE
FIRST ITEM OF BUSINESS
Volume is Length *Width *Height/Volume of a cube = side times side times side
Cube = a3
Rectangular prism = a*b*c
Volume is measured in cubic units
The volume of a figure is the # of cubes required to fill it completely
SECOND ITEM OF BUSINESS
A=πr2
number of square units inside that circle
If you have the diameter of a circle, you can use it to find the area of that circle
The area A of a circle equals the product of pi (π) and the square of its radius r
THRID ITEM OF BUSINESS
SPHERE
· V=43πr3
· The number of cubic units that will exactly fill a sphere
· the volume of a sphere is exactly two thirds the volume of its circumscribed cylinder
Cone
· V=πr2h
exactly one third the volume of the cylinder
CYLINDERS
· V=πr2h
The volume of a cone is a third of a cylinder
It takes 3 cones to fill up a cylinder
A CONES RELATION TO A CYLINDER
FOURTH ITEM OF BUSINESS
· The volume of a sphere is 4πr3/3, and the volume of the circumscribing cylinder is 2πr3
FIFTH ITEM OF BUSINESS
A cylinder has a radius of 5 cent0imeters and a height of 12 centimeters. What would the height of a cone need to be if it has the same volume and radius? Round to the nearest centimeter.
Let h be the height of the cylinder, H be the height of the cone, and r be the radius of both.
The height of the cone is 36 centimeters.
Mia’s parents have a cylindrical oak tree stump that has a diameter of 3 feet and a height of 2 feet. How much does the stump weigh if the average weight of oak is 59 pounds per cubic foot? Round to the nearest tenth.
First find the volume of the stump.
To find the weight of the stump, multiply the volume by 59.
14.1(59) = 831.9
So, the weight of the stump is about 831.9 pounds.
The radius of a basketball is 4.7 inches. What is the volume of the basketball? Round to the nearest tenth.
The volume of the basketball is about 434.9 cubic inches.
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