Answer:
Explanation:
Easy...
a=.5bh
so, .5*18*15= 135 in^2.
It looks like it has about four triangular sides, so just multiply that number four times.
135*4= 540
add the base
a=lw
=15*15
=225
540+225= 765 in^2
Let's hope. A better photo next time would definitely help....;)