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Q.

Two cubes have their volumes in the ratio 1:27 .The ratio of surface areas is ____


 the ratio of their surface areas.


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Detailed Solution

Concept: The ratio of surface areas is 1:9 the ratio of their surface areas.
In this specific form of inquiry, we must move on by describing the cubes' sides as a and b and calculating their ratio. Then, we must apply it to determine the surface area ratio of the two cubes.
The cube's sides should be a and b.
So, we know that a cube's Question ImageTherefore, the volumes' ratio = Question Image But ratio= 1:27
Question ImageSurfaces areas = Question Image=Question Image=Question Image=Question ImageHence, the ratio of surface areas is 1:9.
 
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