Question

The length of the sides of a triangle are 9,40,41 State whether the teiangle is right angled triangle​

Answer 1

If it's a right angle triangle, it should satisfy pythogoras theorem
LHS - 9^2 + 40^2 = 81 + 1600 = 1681
RHS - 41^2 = (40 + 1)^2 = 1600 + 1 + 2(40)(1) = 1601 + 80 = 1681
Since LHS = RHS,
The triangle is a right angle triangle