If 13 is the slant height of a triangular face, then the area of the pyramid is just the base plus four triangles:
11*11 + 4*(11*13/2) = 407
I keep having trouble guessing what you mean by "side" especially of a cone.
Surface area of a square pyramid
11in 13in and 9in
11 height
13 side?
9 base edge
I keep getting the wrong answer its not 328.62 or 294.93
Square area of a cone
15 side?
12 height
6 base
It's not 365.99 or 417.62
I don't need anything rounded...help please!
1 answer
1 answer