App Detail » Geometry: Volume of Solids (Video & Calculator)

What's New

Updated the app to support iPhone 5's new screen size.

Fixed the issue where the video screen is not displayed properly for iPad with iOS 6.

App Description

This app provides a quick and simple way for you to learn and calculate volume of solids. There are six computer animated videos on the volume of the cube, rectangular solid, cylinder, sphere, cone and pyramid. Each video is divided into several different parts that you can easily skipped to.

Also, we included a calculator for each of these solids so you can easily calculate the solid's volume and other parameters. Each calculator will automatically perform unit conversions between yard, inch, feet, centimeter and meter if needed. This will help you to save a lot of time.

The videos included in this app are:

1. Basics on finding 'Volume'
•Introduction
•Example 1: Deriving rectangular solid volume formula
•Finding the unit for the volume formula in Example 1
•Example 2: Deriving the formula for the volume of cylinder
•Finding the unit for the volume formula in Example 2

2. Volume of a Cube
•Introduction
•Deriving the formula for the volume of a cube
•The unit for the volume of a cube
•Example 1: Find the volume of a cube
•Example 2: Find the length of each side of a cube

3. Volume of a Cylinder
•Introduction: Deriving the formula for the volume of a cylinder
•The unit for the volume of a cylinder
•Example 1: Find the volume of a cylinder
•Example 2: Find the height of a cylinder
•Further solving the equation in Example 2 to find the height

4. Volume of a Sphere
•Introduction: The formula for the volume of a sphere
•Example 1: Find the volume of a sphere given its radius
•Finding the unit for Example 1
•Example 2: Find the radius of a sphere given its volume
•Further solving the equation in Example 2 to find the radius

5. Volume of a Cone
•Introduction: The formula for the volume of a cone
•Example 1: Find the volume of a cone given its base radius & height
•Finding the unit for Example 1
•Example 2: Find the base radius of a cone given its volume & height
•Further solving the equation in Example 2 to find the radius

6. Volume of a Pyramid
•Introduction: The formula for the volume of a pyramid
•Example 1: Find the volume of a pyramid given its width, length & height
•Finding the unit for Example 1
•Find the height given its volume, width & length
•Further solving the equation in Example 2 to find the height

App Changes

• August 13, 2011 New version 1.2
• November 21, 2012 New version 1.3
• September 18, 2013 Price decrease: $1.99 -> $0.99
• October 06, 2013 Price increase: $0.99 -> $1.99