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Back to: MATHEMATICS SS1
Welcome to class!
In today’s class, we will be talking about geometrical construction. Enjoy the class!
Geometrical Construction
Geometrical construction of lines involves the use of lines and angles to depict a shape or an object.
A Line is a mark or stroke long in proportion to its breadth, made with a pen, pencil, tool, etc on a surface.
A line can also be defined as a long thin mark made by a pen, pencil, marker, etc.
Types of angles
- Acute angle: This is an angle less than 90º
- Obtuse Angle: this angle is greater than 90º but not more than 180º
- Reflex Angle: this angle is greater than 180º but not more than 360º
- Right Angle: this is angle 90º
- Angle on a straight line: the angle is 180º. It is also referred to as ‘straight angle’.
- Angle that makes a revolution: the angle is 360º or angle around a point. It is full rotation.
- Complementary angles: They are two angles with the sum of 90º
- Supplementary angles: They are two angles with the sum of 180º
In our next class, we will be talking about Triangle: Drawing and Bisection of Line Segment; Construction and Bisection of Angles. We hope you enjoyed the class.
Should you have any further question, feel free to ask in the comment section below and trust us to respond as soon as possible.
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