To calculate the surface aarea, we will use the formula;
T.S.A = 1/2 (pl) + B
where;
p= perimeter of the base
l= slant height
B= area of the base
From the diagram
l= 10 yard
P= 4(16) = 64 yard
B= 16 x 16= 256 yards
Substitute the value into the formula;
T.S.A = 1/2 (64)(10) + 256
=320 + 256
=576 inchesĀ²