Answer:
Our estimate not done correctly because the width was unrealistic.
Step-by-step explanation:
Given that,
Length = 6 m
Width = 0.5 m
We need to calculate the area of rectangular floor
Using formula of area

Where, l = length
w= width
Put the value into the formula


We need to find why this estimate not done correct
Using given data
We can say that,
We assume width was unrealistic.
The length of room is 6 m.
We know that,

So, the length would be 20 feet.
The width of room is 0.5 m.
The width of room would be 1.64 feet.
So, the area will be


Hence, Our estimate not done correctly because the width was unrealistic.