Surface Area of the figure is 1208 square centimeters a=20 b=13 c=12 d=5 e=8 Top face: A1=a×e=20×8 ae=160 Bottom face: A2(a+2d)×e=(20+2×5)×8=(20+10)×8=30×8 (a+2d)e=240 Front face: Rectangle a×c=20×12=240 Triangle: 12c×d=12×12×5=6×5=30 A3Rectangle +2 triangles 240+2×30=240+60=300 (a+d)c=300 Slant face: A4=b×e=13×8=104 be=104 Total surface area A=A1+A2+2(A3+A4) A1=160 A2=240 A3=300 A4=104 Thus, A=160+240+2(300+104) A=400+2(404) A=400+808=1208 Surface Area of the figure is 1208 square centimeters
