Math, asked by palakshisingh159, 1 month ago

Three cubes each having an edge 4 cm are joined together. Find the surface area of the cuboid thus formed. Is this surface area equal to the sum of the surface areas of the three separate cubes?


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Answers

Answered by vedantchawda008
1

Answer:

i) 224 cm^2 ii) No

Step-by-step explanation:

3 cubes of edge 4cm are joined end to end, then length of cuboid=4+4+4=12cm

breadth and height=4cm

Surface area=2(lb+bh+lh)

=2(12×4+4×4+12×4)

=2(48+16+48)

=2(112)

=224cm  

Surface area of seperate cubes = (6a^2)3

                                                        6*4*4*3

                                                        288 cm^2

                                                        Hence surface area is not same

Hope it helps!

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