Surface Area of Composite Shape
In class we were assigned the task of determining the surface area of a composite shape. My strategy was to find the surface area of both the shapes separately and subtract the overlap. Small Box: 8×8=64 8×3=24 8×3=24 64+24+24=112 Big Box: 20×8=160 20×12= 240 12×8=96 160+240+96=496 112+496=608 608×2=1216 64+64=128 1216-128=1088cm squared