# KEEP IT REAL,KEEP IT SAFE

## BETTER CASE FOR YOUR PHONE CASE

My product is a cylinder container to put phone cases in. I came up with this idea because I've notice that people have their phone case all over the place, losing them, or breaking them. So this idea will fix that. The container has a radius of 4 and a height of 10 giving it the volume of 502.65

## 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

## A CONES RELATION TO A CYLINDER

A CONE IS EXACTLY ONE THIRD OF A CYLINDER, MEANING THAT IT TAKES THREE CONES TO FILL UP ONE 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.

the problem work out is on the actual project scope

## KEEP IT REAL, KEEP IT SAFE

PLEASE KNOW THAT THE ADDRESS AND PHONE NUMBER ARE NOT REAL, BUT THE EMAIL IS