Answer:
Not a right triangle. See below for my reasoning.
Step-by-step explanation:
If this is a right triangle, then the sum of the squares of the two shorter sides will equal the square of the longest side: 7^2 + 9^2 = 11^2 => 49 + 81 = 121 But this is false.
Two negatives equal a positive, so its just like subtracting 50 and 30, but your answer will be a positive.
The top answer on your screen is the answer. Hope this help