Question

Which are measurements of the sides of a right triangle? Select one of the options below as your answer: A. 202, 198, 40 B. 28, 26, 12 C. 17, 14, 6 D. all of the above

Answer 1

Square each number. See if the biggest square is the sum of the two smaller squares. If yes, then it is a right triangle. Otherwise, no.

Answer 2

202^2 = 40,804
198^2 = 39204
40^2 = 1600
198^2 + 40^2 = 39204 + 1600 = 40,804
which equals 202^2 and therefore this is a right triangle.

Same procedure for the other two choices.

Answer 3

B) 28, 26, 12
Square each number:
28 x 28 = 784
26 x 26 = 676
12 x 12 = 144
Add the two small squares: 676 + 144 = 820. This does NOT match the biggest square 784. Therefore, this is NOT a right triangle.

Answer 4

You can try C. Same procedure.