#3**+2 **

Top 13 * 16 = 208

Two triangles at front and back at the top = 5 * 12 = 60

" Left Side" at the top = 5 * 16 = 80

Two sides of 16*7 = 2*16*7 = 224

Front and back at the bottom part = 2*12*7 = 168

Bottom = 12 * 16 = 192

Adding all of these

208 + 60 + 80 + 224 + 168 + 192 =

932 ft^2

CPhill Mar 20, 2018

#4**+1 **

Here is another way to think about it

If we let the side facing us be the base, then we look at the shape like a prism....

surface area = (perimeter of base)(height) + 2(area of base)

perimeter of base = 7 + 12 + 7 + 5 + 13 = 44 ft

height = 16 ft

area of base = area of triangle + area of rectangle

area of base = (1/2)(12)(5) + (12)(7)

area of base = 30 + 84

area of base = 114 ft^{2}

surface area = ( 44 ft )( 16 ft ) + 2( 114 ft^{2} )

surface area = 704 ft^{2} + 228 ft^{2}

surface area = 932 ft^{2}

hectictar Mar 21, 2018