LuLukiki1379 LuLukiki1379
  • 23-01-2018
  • Mathematics
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How to tell if a triangle is obtuse acute or right based on side lengths?

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hisroyal1
hisroyal1 hisroyal1
  • 01-02-2018

If a triangle is made up of side lengths a, b and c

 

Given that c is the longest side length of the triangle,

The Pythagorean theorem can be used to tell if the triangle is obtuse, acute or right

 

In an obtuse triangle,

a^2 + b^2 < c^2

 

In an acute triangle,

a^2 + b^2 > c^2

 

In a right angled triangle,

a^2 + b^2 = c^2

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