Question

If the sides of a right ∆ are a , a + 1 and a - 1, then the length of the hypotenuse is ( 'a' is a positive integer > 1 )
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Answer 1

Answer:

hypotenuse equals 5

Step-by-step explanation:

using phtyagoras therom

(a+1)^2=a^2+(a-1)^2