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Geometry/Pythagoras Theorem

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Question
pythagoras theorem
pythagoras theorem  
Here ,a/c to pythagoras theorem ,r^2=a^2+x^2
but how
is the angle mentioned is right angle?

Answer
Hi Muhammad,

The x- and y-axes intersect at a right angle.  We choose to set up the axes this way to make calculations easier.  Bear in mind, this is a three-dimensional scenario illustrated, so the angle does not look like a right angle.

I hope I have understood and answered your question.  If not, feel free to ask a follow-up.

Thanks for asking,
Azeem

Geometry

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Azeem Hussain

Expertise

I welcome your questions on algebra, 2D and 3D geometry, parabolic functions and conic sections, and any other mathematical queries you may have.

Experience

4 years as a drop-in and by-appointment tutor at Champlain College. Private tutor for dozens of clients over the past 8 years.

Publications
CALPHAD: Computer Coupling of Phase Diagrams and Thermochemistry

Education/Credentials
Bachelor of Science, Major Mathematics and Major Economics, McGill University, 2014. Diploma of Collegiate Studies; Pure and Applied Science, Champlain College Saint-Lambert, 2010.

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