In the adjoining gure, two points A and B lie on the same side of a line XY if AD XY, BEXY and Cis the midpoint of AB, prove that CD CE
Question
In the adjoining figure, two points A and B lie on the same side of a line XY if AD XY, BE XY and C is the midpoint of AB, prove that .
Solution
To prove that , we can follow these logical steps:
1. Break Down the Problem
- Understand the given conditions:
- Points and are situated on the same side of line .
- Point is the midpoint of segment .
- Line segments and intersect line perpendicularly at points and , respectively.
2. Relevant Concepts
- Use the properties of midpoints and perpendicular lines.
- Recall that if is the midpoint of , then:
- Use the concept of right triangles formed by the perpendicular segments.
3. Analysis and Detail
- Construct right triangles and .
- By the definition of midpoint:
- Since is the midpoint, .
4. Verify and Summarize
- Since and are on the same line and , :
- Both points and are at the same distance from line , confirming that and are equal as they are both the heights from to line .
Final Answer
Thus, we have proved that .
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