Please help me it’s due tonight and I’m stuck on this question!!

Answer:
The length of the ramp is 7.3 meters.
Step-by-step explanation:
The length of a triangle's side must be less than the sum of its two other sides. It also cannot have the same value as its other combined sides.
7 + 2 > 7.3
2 + 7.3 > 7
7 + 7.3 > 2
r is also longer than 7 meters, so that leaves option b. as your answer.