Question

@AnyTipzWouldHelp

Answer 1

I'm afriad I can't help you on this one, I could if it was 2D though lol, sorry, maybe @AravindG or @Hero @ganeshie8 @mathmale can help.

Answer 2

Use the formula:

\[\large A_L=a \sqrt{a^2+4h^2}\]

Answer 3

a=base edge

h=height

Answer 4

Alternatively, you could determine the height of each of the four triangles that make up the sides of this square-based pyramid. Once you have that height, h, the surface area of each triangular face is (1/2)(base)(height). and you know there are four such faces.