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144 Formula: c= (a2)+(ab)
This is known as the Cosine Rule.
l a2 b2 is c2!!Its completely norma
The Theorem of Pythagoras.
Pythagoras' theorem. This is telling us that, for a right angled triangle, the square of the hypotenuse (c2) is equal to the sum of the square of the other two sides (a2 + b2).