Question

2 cubes each of volume 64cm cube are joined end to end. Find the surface area of the resulting

Answer 1

Answer:

the surface area Let side of the cubes in cm is

.Then,

<br> If we join these two cubes end to end, then surface area of resulting cuboid will have

faces <br> as two internal faces are common will not be included in the cuboid.<br> Please refer to video for graphical explanation.<br> So, surface area of resulting cuboid,

Surface area of each face<br>

Answer 2

Question:

2 cubes each of volume 64cm cube are joined end to end. Find the surface area of resulting cuboids?

Answer:

160cm²

Step-by-step explanation:

Given that,

Volume of cubes = 64cm³

(Edge)³ = 64

Edge = 4cm

If cubes we joined end to end, the dimensions of the resulting cuboid will be 4cm, 4cm, 8cm

∴Surface area of cuboids = 2(lb+bh+lh)

⇒2(4×4+4×8+4×8)

⇒2(16+32+32)

⇒2(16+64)

⇒2(80)

⇒2×80

⇒160cm²

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