Patterns | Term 2 Chapter 3 | 5th Maths - Patterns of shapes using angles | 5th Maths : Term 2 Unit 3 : Patterns
Chapter: 5th Maths : Term 2 Unit 3 : Patterns
Patterns of shapes using angles
Let us recall the types of angles.
Observe the angles formed at the vertex of the following shapes.
This is an equilateral triangle.
It has 3 angles formed at 3 vertices.
The 3 angles are equal in measure and they are equal to \(60^\circ\).
It can be demonstrated as follows.
We shall find the angles of a regular hexagon using the equilateral triangle. Place the equilateral triangles in a regular hexagon as shown in the figure.
Angle at the centre of a regular hexagon is \(360^\circ\).
This is also the angle of a circle.
Angle at each vertex of a regular hexagon is \(120^\circ\)
Angle of a circle is \(360^\circ\)
Let us find the angle of square using a circle.
Place 4 squares as shown in the above figure.
The shape formed at the centre is a circle. The angle of circle is \(360^\circ\).
Now the angle of a square is \(360^\circ \div 4 = 90^\circ\).
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Summary: 5th Maths : Term 2 Unit 3 : Patterns : Patterns of shapes using angles | Patterns | Term 2 Chapter 3 | 5th Maths