Question

Supposea triangle has sides 3, 4, and5. Which of the following must be true? OA The triangle in question is not a right triangle. OB. The triangle in question is a right triangle. Oc.The triangle in question may or may not be a right triangle.​

Answer 1

Answer: B. The triangle in question is a right triangle.

Reason:

The sides are

• a = 3
• b = 4
• c = 5

Plug them into the equation below and simplify both sides

`a^2+b^2 = c^2\\\\3^2+4^2 = 5^2\\\\9+16 = 25\\\\25 = 25\\\\`

Therefore, we have a right triangle. For more information, check out the converse of the pythagorean theorem.