Learning Task 1:Calculate the surface area of the solid figures represented by the following images.Write your complete solution and answer on a separate sheet of paper.

Step-by-step explanation:
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4.
Surface Area = 2(1/2(4)(3)) + [(6 + 5 + 4)(20)]
Surface Area = 12cm^2 + [(15)20]
Surface Area = 12cm^2 + 300cm^2
Surface area = 312cm^2