Question

7. Which of the following lengths of lines could be used to create a right triangle?

-6, 9, 12
-5, 12, 13
-4, 8, 16
-7, 15, 19, 7
Please help

Answer 1

-5,12,13 If You use the Pythagorean theorem for the first three you can find out which ones would be triangles. The last one you know can’t be a triangle because there’s four lines. The Pythagorean theorem is a squared plus B squared equals C squared so you would plug in your numbers in that formula and see if it is a true statement.