Mathematics - Class ...
Mathematics - Class 4
Topic outline
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Math - Class 4 – Angle Basics/ Naming Angles/ Interior and Exterior of an angle/Angle Introduction/ Identify geometric solids - Key Points/Notes/Worksheets/Explanation/Lesson/Practice Questions Tags: Free Worksheet PDF on Angle basics for class IV, How can you name an angle in three ways? Lesson on Naming angles for class 4, Vertex, Arms, Angles, Exterior of an angle, Interior of an angle, Angle basics and naming angle worksheet PDF, Angle basics and naming angle practice page for 4rth standard, How do you label an angle? Quiz on angle basics and naming angle for fourth grade, Angle is formed when two rays or two line segments are joined with a common end point. Vertex: Common end point where two arms meet is called vertex of an angle. Arms: Two rays or line segments forming an angle are called arms. We can name angle as angle XYZ or angle Y.
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‘Angle Basics’ and ‘Naming Angles’
Angle Basics
Angle is formed when two rays or two line segments are joined with a common end point.
Vertex: Common end point where two arms meet is called vertex of an angle.
Arms: Two rays or line segments forming an angle are called arms.
Naming Angles
We can name angle as angle XYZ or angle Y. We use symbol
to denote an angle.
So, we can write
Note:
1. We use capital letters to name an angle.
2. Letter in the middle denote the vertex of an angle.
3. We can also use number in place of alphabet to name an angle.
Interior and Exterior of an angle
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