Lines and Angles - 1 - Class 6 Mathematics Free MCQ Test with solutions

A point in geometry is an exact location with no length, width, or height. It is usually labeled with a capital letter and is imagined to be very small, representing a specific position without any physical dimensions.

A line segment is the shortest distance between two points and has two endpoints. A line, on the other hand, extends infinitely in both directions and has no endpoints.

A right angle measures exactly 90°, which is half of a straight angle (180°). It is often represented by the 'L' shape.

A protractor is the tool used to measure angles. It is typically a half-circle divided into 180 equal parts, each representing one degree.

- An acute angle is defined as an angle that measures less than 90 degrees.
- Among the given options, 60° is less than 90°, making it an acute angle.
- The other angles are classified as follows:
- 120° is greater than 90° (obtuse angle).
- 90° is a right angle.
- 180° is a straight angle.
- Therefore, the only acute angle in the list is 60°.

Folding a piece of paper to bisect an angle divides the angle into two equal parts. This line of division is known as the angle bisector.

A straight angle measures exactly 180° and looks like a straight line. It is formed when the arms of the angle point in opposite directions.