Answer:
Length of third side is: 
Step-by-step explanation:
Perimeter of triangle = 
Length of side 1= 
Length of side 2= 
We need to find length of third side.
The formula used is: 
Putting values and finding length of third side.

So, Length of third side is: 
I believe using the equation v=lwh the answer would be 420ft^3.
Answer:
Its B
Step-by-step explanation:
A c and d are the answers