Great video! I had one question though: I had a question on bluebook practice test #4 that utilizes a different formula for the surface area of a rectangular prism (#21 on the hard math section, the question being "Two identical rectangular prisms each have a height of 90 cm. The base of each prism is a square, and the surface area of each prism is K cm^2. If the prisms are glued together along a square base, the resulting prism has a surface area of 92/47 k cm^2. What is the side length, in cm, of each square base?" Additionally, will I also have to know other versions of alternate surface area formulas? Thanks in advance.
For me it’s 11pm, that’s some dedication
Mario! You are an awesome teacher.
Awww thanks!
@@MariosMathTutoring
Welcome
Great video! I had one question though: I had a question on bluebook practice test #4 that utilizes a different formula for the surface area of a rectangular prism (#21 on the hard math section, the question being "Two identical rectangular prisms each have a height of 90 cm. The base of each prism is a square, and the surface area of each prism is K cm^2. If the prisms are glued together along a square base, the resulting prism has a surface area of 92/47 k cm^2. What is the side length, in cm, of each square base?"
Additionally, will I also have to know other versions of alternate surface area formulas? Thanks in advance.
find the determinant first, if it is not 0, use cramer’s rule, else use Gaussian elimination method
That is one option.
I'm sticking right here I can't solve these equations I do not know why