File:Estimating height.png

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Estimating_height.png(565 × 352 pixels, file size: 79 KB, MIME type: image/png)

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Summary

Description

Diagram showing how to estimate the height of an object. Hold a ruler so that its "zero" mark is in the line of sight (A) of the base of the object to be measured. Move the ruler towards or away from your eye until line B crosses the "1" mark on the ruler and lines up with a known height on the object. Without moving the ruler, glance up and note the measurement where the line of sight (C) to the top of the object crosses the ruler. Multiply this measurement by the known height to get the height of the object.

Date
Source self-made using OpenOffice.org's sdraw program.
Author Jomegat

Licensing

I, Jomegat, the copyright holder of this work, hereby publishes it under the following licenses:
GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.
w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
Attribution: I, Jomegat
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
This licensing tag was added to this file as part of the GFDL licensing update.
w:en:Creative Commons

attribution share alike

This file is licensed under the Creative Commons Attribution-Share Alike 2.5 Generic, 2.0 Generic and 1.0 Generic license.
Attribution: I, Jomegat
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.

You may select the license of your choice.

File history

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Date/TimeThumbnailDimensionsUserComment
current21:09, 3 July 2007Thumbnail for version as of 21:09, 3 July 2007565 × 352 (79 KB)Jomegat{{Information |Description=Diagram showing how to estimate the height of an object. Hold a ruler so that its "zero" mark is in the line of sight of the base of the object to be measured. Move the ruler towards or away from your eye until the "1" mark li