The three side lengths of four triangles are given. Which triangle is a right triangle? Triangle 1: 13.6.7
Triangle 2: 7.8.13
Triangle 3: 10, 11, 12
Triangle 4: 10.9.8

Answers4.) -1/205.) -1/406.) -55/127.) -3/4

The question is kind of confusing. if it's asking how many variations of answers can you give. then do 4^5 for your answer.this would be something like the first question could be a and the 2nd c or first b next c etc. if you can, ask the teacher for a better confirmation of what it's asking. if i'm assuming correctly what it's asking, it's 625 different variations.