Square based prism general rule

[ashclouded]

Homework Statement

See attached picture

Homework Equations

For any rectangular prism, the formulas are the following:

Surface Area = 2(lw + wh + hl); l is length, w is width, and h is height.

Volume = lwh; l is length, w is width, and h is height.

For a square-based prism, the formulas are simplified into the following:

Surface Area = 2(s^2 + 2sh); s is side of square face and h is height.

Volume = s^2h; s is side of square face and h is height.

The Attempt at a Solution

I'm not sure how to start the question at all[/B]

 

[BvU]

You can't use a formula for a specific subgroup (rectangular prisms) for your square-based prisms ! The latter are more general than just rectangular.

Is there anything you did or found in question 2 that is relevant for the current exercise ?

 

[ashclouded]

I don't have the question and answe on me but I will post it tomorrow
Thanks for replying, I've no idea how to do this and it's bugging me

 

[BvU]

Well, some good spirit warned you (for obvious reasons), but also moved to the calculus part of PF. Why would that be ?