Answer:
378 cm^3
Step-by-step explanation:
V = Bh = l * w * h
since the Base B is 54 (l*w), multiply by 7 to find volume
54 * 7 = 378
Answer:
-I
Step-by-step explanation:
Given :
I= 
Now

And 
Answer will be -I
Answer:
75.5 cm
Step-by-step explanation:
S = (a+b)*h/2
h = 2 * S / (a+b) = 2 * 7701 / 204 = 75.5 cm
When doing that it will be B