In this clip, two young men compare the sizes of three hypothetical candy bars to decide which to buy.

This video demonstrates how to find the volume of circular shapes such as spheres and cones, which both require the use of the circle formula. It also explains how the revolution of one shape can create another three dimensional shape with a circular quality.

The video discusses how standard sizes revolutionized marketing and assembly line production. It also highlights how important standard sizes are in terms of sales and production. Companies used standard sizes to create a level of predictability regarding how many of each size to manufacture and/or order, and they credit size standardization for being able to create more accurate predictions.

Square One TV shows kids how to calculate area and perimeter. The couple must work out the area of their home so they may invite the correct number of guests to their party.

Marcus du Sautoy explains how Ancient Egyptian governments used algebra and geometry to calculate property tax and keep control of both their economy and their land.