College

The points C, D, E, and F all lie on the same line segment, in that order, such that the ratio of CD : DE : EF is equal to 1 : 3 : 3. If CF = 42, find EF.

Answer :

The length measure of.line segment; EF according to the task content as described is; 18.

What is the value of the line segment EF?

It follows from the task content that the line segment CF is given as having a measure of 42.

On this note, since the line segment CF represents the total of CD, DE and EF, it follows that the line segment EF can be determined as follows;

3/7 = EF/42

EF = (42×3)/7

= 18.

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