In figure A and B are on the same side of line L. AD perpendicular to l and BE perpendicular to l. If C is the midpoint of AB proove that CD = CE.

There is a lot of missing information here. I can easily devise a scenario where the assertion is false.

Suppose A is 1 cm above L and B is 10 cm above L.

If D and E are on L, clearly CD < CE.

Ac equal to bc(midpoint)

Draw cm that is median
Triangle cdm is congruent to triangle CME
That is cd epual to ce(cpct)

To prove that CD = CE, we can use the properties of a perpendicular bisector and the fact that C is the midpoint of AB.

Here's how you can go about proving it step by step:

1. Draw the given figure with line L and points A, B, C, D, E as described in the question.

2. Since AD is perpendicular to line L and BC is perpendicular to line L, we have two pairs of congruent right triangles: ACD and BCE (By definition of perpendicular lines).

3. Now, observe that AC = BC (By definition of midpoint).

4. Using congruent right triangles ACD and BCE, we can conclude that CD = CE (By HL- Hypotenuse Leg Congruence Theorem).

Therefore, we have proved that CD = CE using the given information.