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Question
How can you obtain and angle of 15 degrees using the system of set squares?
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Solution
The question asks to obtain and not draw an angle measuring 15 degrees.
15° = 45° − 30°STEPS:1. Take a base AB.2. Using 90−45−45 set squares, draw an ∠ABC of 45°.3. On the same base AB, draw an ∠ABD of 30° using 90−60−30 set square.4. ∠CBD = ∠ABC − ∠ABD = 45° − 30° = 15°
15° = 45° − 30°STEPS:1. Take a base AB.2. Using 90−45−45 set squares, draw an ∠ABC of 45°.3. On the same base AB, draw an ∠ABD of 30° using 90−60−30 set square.4. ∠CBD = ∠ABC − ∠ABD = 45° − 30° = 15°
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