It is c the volume of the smaller pyramid cannot be determined
Think of it this way. Let's say t= one. 1+8 is 9. Your answer is 9t. Think of a variable without a number as one.
Answer:
See Explanation
Step-by-step explanation:
The question is incomplete, as the sector, its area and the angle at the center are not given.
I will solve this using the following illusration
The area of a sector is:

Assume that:


The equation becomes

Simplify

Take: 

Cross Multiply

Solve for 


Take square roots

