Answer:
92cm^2
Step-by-step explanation:
Triangular Prism
Front Triangle: A=1/2*b*h , A=1/2*4*3 , A=6 cm^2
Back Triangle: A=1/2*b*h , A=1/2*4*3 , A=cm^2
Bottom Rectangle: A=b*h , A=4*3 , A=12cm^2
Back Rectangle: A=b*h , A=2*3 , A=6cm^2
Top Rectangle: A=b*h , A=5*2 , A=10cm^2
Total: 6cm^2 + 6cm^2 + 12cm^2 + 6cm^2 + 10cm^2= 40cm^2
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Rectangular Prism
Front Rectangle: A=b*h , A=4*3 , A=12cm^2
Back Rectangle: A=b*h , A=4*3 , A=12cm^2
Side 1 of Rectangle: A=b*h , A=2*3 , A=6cm^2
Side 2 of Rectangle: A=b*h , A=2*3 , A=6cm^2
Top Rectangle: A=b*h , A=2*4 , A=8cm^2
Bottom Rectangle: A=b*h , A=2*4 , A=8cm^2
Total: 12cm^2 + 12cm^2 + 6cm^2 + 6cm^2 + 8cm^2 +8cm^2= 52cm^2
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Total Composition Figure:
40cm^2 + 52cm^2= 92cm^2
