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How to work out 3D Pythagoras – including a cheat sheet!

January 23, 2016 by Simon Leave a Comment

How to work out 3D Pythagoras

 

GCSE mathematics questions on how to work out 3D Pythagoras appear on many exam papers and you can download the questions from here. They can be a little challenging and please do practice all of the problems – here’s the link to the answers.

The main things to remember when working with 3D Pythagoras questions are:

– There’s usually 2 questions and you’ll be using Pythagoras for both
– Remember that asquared = bsquared + csquared can be changed to suit whatever labelling has been added to the diagram
– Remember that you’re calculating ‘asquared’ so you’ll need to square root at the end
– Redraw each of the right angle triangles so you can ‘show your working’
– Take your time and work to the right degree of accuracy

Here’s a ‘cheat sheet’ to download – it might help with your revision

If you’d like to ask for any more detail, or you’re not sure about anything, please do ask a question in the comments section.

All best with your studies 🙂

 

Watch on YouTube:

3D Pythagoras Cheat Sheet – everything in one easy revision crib sheet

How to work out 3D Pythagoras GCSE maths question 1

How to work out 3D Pythagoras GCSE maths question 2

How to work out 3D Pythagoras GCSE maths question 3

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