Answer:
Given,
The sum of the two sides must be equal to the square of the third side.
The three sides of the triangle – a, b and c.
P = (a-1) cm, q = 2 √???? ???????? ???????????? ???? = (???? + 1) ????????
????2 + ????2 = (???? − 1) 2 + (2√????) 2
=>????2 + 1 − 2???? + 4????
=>????2 + 1 + 2????
=>(???? + 1) 2
????2 = (???? + 1) 2
????2 + ????2 = ????2
Thus, the given triangle is right-angled.