Question

Determine whether the triangle having sides (b-1) cm, 2√b cm and (b+1) cm is a right angled triangle.

Answer 1

Answer: YES

Step-by-step explanation:

(B-1)² = B² + 1 - 2B

(B+1)² = B² + 1 + 2B

(2√B)² = 4B

Clearly ,

B² + 1 - 2B + 4B = B² +1 + 2B

= (B-1)² + (2√B)² = (B-1)²

Since this follows the pythagoras theorum,

It is a right triangle

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