1.

Two cubes each of volume27cmsquare are joined end to end find the surface area of resulting cuboid​

Answer»

Answer:

90 cm²

Step-by-step EXPLANATION:

Volume = 27 cm³

Therefore ,

Side = Cube root of 27 = 3 cm

Area of one square on the cube = 9 cm²

TSA of one cube = 9*6 = 54 cm²

The cubes are joined end-to-end .

Therefore TWO sides would be merged .

Therefore ,

TSA of cuboid = 2(54) - (9)2 { Two cubes and two sides merged }

                        = 90 cm²

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