Assuming that is a square pyramid
that is the square base+4 triangles
that is
side^2+4(1/2bh)
where b=side=14in
and h=height=13in
surface area=14^2+4(1/2)(14)(13)
SA=196+(2)(182)
SA=196+364
SA=560 square inches
Answer:
is there a passage or sum?
Step-by-step explanation:
Huh? What do you mean I don't understand
Answer: so you do length times width times height and then you divide by two
Step-by-step explanation:
