What's the area of this rectangular prism?

Last one and the bottom answer choice is y=(x-4)^2+1 you guys!

Given: circle o, cd is diameter, chord ab || cd. arc ab = 74°, find arc ca.

Use mathematical induction to prove the statement is true for all positive integers n, or show why it is false. 1^2 + 4^2 + 7^2 + + (3n - 2)^2 = [n(6n^2-3n-1)/2]