Question

determine whether the triangle having sides( a - 1 )cm 2√a centimetre and (a + 1) centimetre is a right angle triangle​

Answer 1

Answer:

it may be a right angled triangle.

Step-by-step explanation:

using PGT (Pythagorous theorem) -----

(a - 1)^2 + (2root2)^2 = (a +1)^2