Test: Geometry - 1 - CTET & State TET MCQ

A flag is always perpendicular to the ground, not parallel. 

Hence, False. 

180 is a straight angle. 

Corner of room is right angle

Ruler is an example of straight  angle.

In Maths, a straight angle is an angle equal to 180 degrees. It is called straight because it appears as a straight line.

A line cannot be drawn on a paper. We can only draw a line segment on a paper. A line extends indefinitely in both directions and therefore we cannot draw a line on a paper. Whereas a line segment is of finite length.

An acute angle is an angle that measures less than 90°. It can be measured using a protractor. For example, 35°, 60°, 72°, and so on are all acute angles.

A full angle, also called a complete angle, and 360 is a complete angle. 

A reflex angle is any angle that is more than 180 degrees (half circle) and less than 360 degrees (full circle). A reflex angle will always have either an obtuse or an acute angle on the other side of it.

Stumps of a wicket is an example of perpendicular. (with reference to ground)

All perpendicular lines are intersecting lines

A point is an exact location in space. A point is denoted by a dot. A point has no size.

Clock shape is a complete angle.

The flag post is always perpendicular to the ground.

An obtuse angle is a type of angle whose degree measurement is more than 90° but less than 180°. Examples of obtuse angles are: 100°, 120°, 140°, 160°, 170°, etc.

The angle of a straight angle is usually 180°. Whenever two rays join together they form an angle.

The inside of an angle is called interior angle. 

The outside of an angle is called exterior angle. 

90 degrees constitute a right angle. 

The rays start from the sun and go in all directions without ending in one point. Thus, a ray has one endpoint.

Angles between 0 and 90 degrees (0°< θ <90°) are called acute angles. Angles between 90 and 180 degrees (90°< θ <180°) are known as obtuse angles.