Which geometrical instrument used to draw and measure angles?a)Protrac...
Protractor
A protractor is a geometrical instrument that is used to draw and measure angles. It is a semi-circular tool made of plastic or metal and has a degree scale from 0 to 180 degrees. Protractors are commonly used in geometry, trigonometry, and other mathematical fields to measure angles and draw precise angles.
Uses of Protractor
Protractors have many uses, including:
- Measuring angles: A protractor can be used to determine the size of an angle, which is measured in degrees. It is placed on the angle so that one of its arms coincides with one side of the angle, and the other arm points to the other side of the angle. The degree scale on the protractor can then be read to determine the size of the angle.
- Drawing angles: A protractor can also be used to draw precise angles. The center of the protractor is placed on the vertex of the angle, and one of its arms is aligned with one side of the angle. The desired angle can then be drawn by tracing along the edge of the protractor.
Advantages of Protractor
The advantages of using a protractor include:
- Precision: A protractor allows precise measurement and drawing of angles, making it an essential tool in many fields.
- Easy to use: Protractors are easy to use and can be used by anyone, including students, teachers, and professionals.
- Versatile: Protractors can be used in various applications, including construction, engineering, and design.
Conclusion
In conclusion, a protractor is an essential geometrical instrument used to draw and measure angles accurately. It is a versatile tool that can be used in many fields, including mathematics, engineering, and design.
Which geometrical instrument used to draw and measure angles?a)Protrac...
Protractor is used to measure all angles but Set square is also used to measure 60,30,90 and 45 degrees but protractor is easy to use.
So,the correct answer is option ' A '.
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