Absolute coordinates in 2D drafting: starting from 0,0, what absolute coordinate should be entered to draw a point 8 units along X and 5 units along Y?
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A8,5
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B5,8
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C0,8
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D5,0
Answer
Correct Answer: 8,5
Explanation
Introduction / Context:Coordinate entry methods determine where entities are placed in CAD. Absolute coordinates reference the global origin, so getting them right is critical for accuracy, repeatability, and parametric construction.
Given Data / Assumptions:
- Start point is at the absolute origin (0,0).
- Target displacement is +8 units in X and +5 units in Y.
- We are using absolute, not relative, coordinates.
Concept / Approach:In absolute entry, the next point is specified as (X,Y) from the origin. Therefore, the endpoint coordinates are computed directly, not added to the prior point (that would be relative mode).
Step-by-Step Solution:
Identify the origin: (0,0).Add the intended offsets to the origin: X = 0 + 8, Y = 0 + 5.Enter the pair as X,Y.Confirm the rubber-band line shows the correct vector.Finish the line to lock the coordinate.Verification / Alternative check:Use the Distance or ID Point tool to confirm the endpoint is at X=8, Y=5 relative to the origin.
Why Other Options Are Wrong:
- 5,8: Swaps axes; gives 5 right, 8 up.
- 0,8: Moves up only.
- 5,0: Moves right only.
Common Pitfalls:Mixing absolute and relative modes. In relative mode you would enter @8,5. In absolute mode, you enter 8,5 with no @ symbol.
Final Answer:8,5