how to make 110 &80degree angle with the help of compass & ruler

The angles which can easily be constructed with the help of a compass are multiples of 15 like 15°, 30°, 75°, 90°, 120°, 135°, 150°, 180° etc.

The mentioned angles i.e., 80° and 110° can easily be made with the help of protractor and ruler.

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