The calculated ratio of the length of DE to BC is (A) 1/4
How to determine the ratio of the length of DE to BC?
From the question, we have the following parameters that can be used in our computation:
The figure
Where, we have
DE = r/2
BC = r
The ratio is then represented as
Ratio = DE/BC
Substitute the known values into the equation
Ratio = (1/2)/2
Evaluate
Ratio = 1/4
Hence, the ratio is (A) 1/4