Explain the use of given device related to angles? Also, to make such a device by yourself what should be done?

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Solution

The given device is called an angle tester.

It is helpful in making or finding whether two angles are equal.

We can place this device on a given angle and widen the limbs as per the angle. Then move the device to other angle and check if it is same as the previous angle.

To make angle tester:
1. Cut two strips from a cardboard sheet.
2. Fix them using a drawing pin such that both the strips can move around freely.

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