Given data:
Volume of the prism A = 2080

Let us find the ratio of the volume of prisms given in the diagram:


Since the condition is:
The volume of Prism A = The volume of Prism B
Therefore,
The ratio of their volumes should be 8.

Since Volume of A = 2080

Plug-in the value, you would get:
Ans: Volume of B = 260
The answer is: b) a = 63°
Step-by-step explanation:
2w+6w=80
w=10
l=30