Question

In A ABC, a = 15, b = 9. c = 12, State whether triangle ABC is a right angled triangle.​

Answer 1

Answer:

always in the right angled triangle there is a rule of phythagoreous theorm i.e (Hypotenuse)^2 = (base)^2 + (perpendicular)^2.

so in this the longest side is 15.

lets check

LHS: (15)^2 = 225

RHS:(12)^2 + (9)^2 = 144 + 81 = 225

Hence LHS=RHS so it is a right angled triangle.