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Thought-Process to Discover Knowledge

Welcome to nubtrek.

Books and other education websites provide "matter-of-fact" knowledge. Instead, nubtrek provides a thought-process to discover knowledge.

In each of the topic, the outline of the thought-process, for that topic, is provided for learners and educators.

Read in the blogs more about the unique learning experience at nubtrek.continue

In this page, a short and to-the-point overview of constructing an angle by copying another angle is provided.

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Which of the following property helps to copy an angle using compass?

  • two triangles with identical sides have identical angles
  • two triangles with identical sides have identical angles
  • no property of triangle can be used to copy an angle

The answer is "two triangles with identical sides have identical angles"

Given `/_ BAC`. To copy this angle, make a triangle of random sides `/_\ APQ`. Copy the length of line segment `bar(AQ)` to mark point `L` on the given line. Copy the lengths of line segments `bar(AP)` and `bar(QP)` to mark `M` from points `X` and `L` respectively. Join the points `X` and `M`. The angle `/_BAC` is reproduced in `/_LXM`. copying a given angle.

Copying a Given Angle : Mark a triangle in the given angle and reproduce the sides of a triangle which copies the angle.copying a given angle.

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