Question 148503
From what's given, it's a square base pyramid (because of 10 ft x 10 ft dimensions). The base is given, and you gave other dimensions = 12ft, suppposedly should be the height, and 13 ft should be the distance from the tip on the top going down slanted or diagonal on the body  in right angle to the base. Sorry, I don't know if you can picture it. But the formula we'll use for Surface Area= (2*base*slanted height) + (base)^2
{{{SA=2*10ft*13ft + 10^2}}}
{{{SA=260+100}}}
{{{SA=360square ft}}}
If you noticed we didn't use the {{{height}}}. We only need this if we're looking for the {{{ Volume}}}.
<font size=4=indigo><b>Thank you,
Jojo</font>