Angles of elevation and depression
This video explains the angles of elevation and depression.
This video explains the angles of elevation and depression.
There are some key words that you need to know for circles: radius, circumference, diameter, sector, segment, tangent, chord and arc. In this video you will discover what they all mean.
This video discusses the topic of circles.
This YouTube video delves into the impact that tourism can have on a country's economy.
This YouTube video delves into the impact that tourism can have on the environment.
This video explains the equation of a circle.
This YouTube video explains how river basins are formed.
This 20 minute YouTube video explores the differences between small and large scale agriculture and the uses of each.
This YouTube documentary highlights the ecological and socio-economic importance of the Tana River Basin in Kenya.
An online application to test your knowledge of evaluating trigonometric functions of special angles.