5 Interesting Facts About Straight Angles |
BY Team Aakash Byju's
NCERT Maths Concept
When two rays meet, they form an angle, and the angle formed by two rays facing opposite directions is known as a ‘Straight angle’.
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An angle makes a straight line through the vertex.
A straight angle is one whose vertex has a value of 180 degrees in geometry.
Here, OX and OY are the arms of an angle. The vertex is the common point O where the rays meet.
How to represent a straight angle?
According to the measurement system, there are several ways to represent straight angles. 1. It is written as 180°
2. It is also written as π
Facts About a Straight Angle
A straight angle is created by rotating one ray by 180 degrees with respect to another ray.
Fact 1 :
A straight angle is used to change the direction of a point.
Fact 2:
Half of a revolution is equal to a straight angle.
Fact 3:
Angles on a straight line add up to 180 degrees.
Fact 4:
Fact 5:
Two right angles can be joined to form a straight angle.
Learn the concept and practice well