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A shaded right-angled triangle with vertices labeled A, B, and A', drawn in a pencil sketch style on textured paper.

A shaded right-angled triangle with vertices labeled A, B, and A', drawn in a pencil sketch style on textured paper.
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Steps: Draw the Initial Segment: Using your ruler and pencil, draw a straight line segment of any reasonable length (e.g., 2-3 inches). Label one endpoint A and the other endpoint B. Rotate Segment AB Clockwise around Center B by 90°: Place the center of your protractor directly on point B. Align the 0-degree mark of the protractor with the segment BA (the line going from B towards A). Measure clockwise from segment BA. Make a small mark at this point. Using your ruler, draw a new line segment starting from point B and going through the mark you just made. This new segment should be the exact same length as your original segment AB. Label the new endpoint of this segment A’. Connect A to A’: Using your ruler, draw a straight line segment connecting point A (from your original segment) to point A’ (the new endpoint you just created). Lightly Shade the Resulting Triangle: Gently shade the interior area of the triangle formed by points A, B, and A’ (Triangle ABA’). See more

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