Pythagoras in three dimensions
Pythagoras' theorem and trigonometry
Essential Mathematics Year 9

Sorry!

This video is for subscribers only.

To view this video please support me by purchasing a (very cheap!) years access.

Share:
##### Videos in this series
Please select a video from the same chapter
Want to skip to the best bits?
Gain access to chapters by taking out a (very reasonable and cheap!) one year plan
This is another video in the Year 9 series looking at Pythagoras' Theorem and Trigonometry. Having already built the basics, I am now going to look at how we can apply Pythagoras' Theorem to three dimensional (3D) shapes. All you need to know is how to find a right angled triangle. Once you have identified it, you can mark the two sides you know and find the one you don't. I look at a number of common examples including a hemisphere (which I have seen used over and over again!) as well as explain that you might need to do more than one calculation in order to get the side length you need. As always, the explanations are clear and easy to understand and designed to help you smash maths.
There are no current errors with this video ... phew!
Lesson notes for this video are for subscribers only. Sorry! To gain access, please consider supporting me by taking out a (very reasonable and cheap!) one year plan by [clicking here]
Video tags

good maths videos for middle school good maths videos good maths videos for high school good maths website good maths teacher maffs guru darren smyth maths tutorials Pythagoras in three dimensions year 9 maths grade 9 maths how to find the lengths of sides in 3D objects using pythagoras in 3D pythagoras theorem how to find the height of liquid in a hemisphere complex pythagoras questions