What is the total surface area of the rectangular pyramid whose net is shown? 30 in.
20 in.
20 in.

12000

Step-by-step explanation:

What you do is multiply 30 by 20 then by 20 once again.  ;)

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.

15.36 per mile

but forgot to round

i am pretty sure