I’m pretty sure it is 57?
Answer: Length of shorter side is 2.8 cm.
Explanation:
Since we have given that
Dimensions of a room are given by

On a plan, the longer side = 4 cm
As we know that the ratio of original room is equal to ratio of plan room
So,

So, length of shorter side is 2.8 cm.
Answer:
21.325 is the correct answer
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</h3><h3>please gimme brainliest :))!!</h3>