This resource includes a triangle with cut outs of its interior angles. This resource allows child to investigate angle sum property of triangle and relation between interior and exterior angles of a triangle. It can be used to demonstrate on magnetic board also.
- with the help of this manipualtive a student can verify experimentally that any exterior angle of triangle is equal to the sum of its corresponding interior opposite angle.
- Great help in learning the concept of a straight angle.
- Help in Laying a strong foundation
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