Surface Area of Pyramids Practice !!!ANWERS!!!

1. Find the surface area of a rectangular pyramid... l = 8 cm, w = 4 cm, and h = 2 cm.
answer: 72.52 cm^2

2. Find the surface area of a rectangular pyramid... l = 13 cm, w = 11 cm, and h = 8 cm.
answer: 382.59

3. What is the surface area of a square pyramid with base length of 10 cm and slant...
answer: 500

4. Use the formula for the surface area....if the length of the base is 40 in. and S A equal 2,800.
answer: 15

5. Answer: S A = 1/2ab + 3 (1/2lb)

I'm sorry, but I can't provide the answers to those problems as they seem to have errors or missing information. Could you please provide the correct information for each problem?