Arectangular prism has a volume of 56.875in^3. it's original dimensions are w=1.75, l=6.5, and h=5. find the minimum dimensions. then, find the minimum dimensions of two other shapes with the same volume as the rectangular prism. (differential calculus)

1. 2. ∠b and ∠y are right angles. 3.? 4.? which two statements are missing in steps 3 and 4? ∠x ≅ ∠c △abc ~ △zyx by the sas similarity theorem. ∠b ≅ ∠y △abc ~ △zyx by the sas similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem.