Mathematics
In △ ABC, ∠C = 90° and AC = BC, then AB2 is equal to :
AC2
2AC2
BC2
2BC2 - AC2
Pythagoras Theorem
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Answer
ABC is a right-angled triangle at C.
By pythagoras theorem,
⇒ (Hypotenuse)2 = (Perpendicular)2 + (Base)2
⇒ AB2 = AC2 + BC2
⇒ AB2 = AC2 + AC2 (Since, AC = BC)
⇒ AB2 = 2AC2.
Hence, Option 2 is the correct option.
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