Answer:
[tex](1/2*4)*5+(1/2*4)*5+(1/2*4)*5+(1/2*4)*5+(4*4)=2*5+2*5+2*5+2*5+16=10^2+10^2+10^2+10^2+16^2=40^2+16^2=56^2[/tex]
Step-by-step explanation:
a triangle is 1/2 of the base x height. so the area of 4 triangles and the surface area of the base square is the total surface area.
