Answer:

Step-by-step explanation:
TSA of brick → 2(L×b+b×h+h×l)





Therefore, Required number of Bricks-


- Hence,The required Number of Bricks = 100 respectively.
Cubes are 3D so what 3 numbers multiply to 20
20×1×1
10×2×1
5×4×1
5×2×2
so 4 different shaped cubes
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Step-by-step explanation: