Question

Formula for how to calculate the length of the third side of a triangle

Answer 1

by Pythagoras theorm,
we see that in order to get the third side we do
$ac {}^{2} + bc {}^{2} = ab {}^{2}$

hope this helps you...,

Answer 2

1st it should be know that which type of triangle it is.

if not known then, you can only say that
1. sum of any 2 sides should be greater than the 3rd side

2.sum of all the 3 interior angles of the triangle should be 180°.


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