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.
Answer:
Step-by-step explanation:

Answer:
630m³
Step-by-step explanation:
volume= 7m×9m×10m=630m³
Answer:
90,000
Step-by-step explanation:
this is wrong