Activity › Discussion › Math › Trigonometry › Reply To: Trigonometry
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Since,
(5)² + (12)² = (13)²
25 + 144 = 169
Pythagoras theorem States that in a right angled triangle the sum of square of the length of two sides of a triangle is always equal to the largest side/side opposite to right angle/longest side.
Therefore,
By inverse of Pythagoras we can conclude that
The given triangle is a right angled triangle