Question

1) To verify the exterior angle is equal to the sum of the two interior opposite angles by paper cutting and pasting.​

Answer 1

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Take a cardboard sheet of suitable size and by using adhesive, paste a white chart paper on it. Cut out the pair of angles, ∠A and ∠B from the glazed paper by using a tracing paper, (see Fig. 13.3). Now, arrange the cut out angles as shown in Fig.(attached)

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