Because this was how you did geometry and math in general in ancient times even till around year 500. The biggest problem was to easily construct exact angles. because it is rly hard to construct a triangle ruler with old materials. but a circle can be constructed with a pencil and a string and with 2 circles you can easily construct exact angles.
Because this was how you did geometry and math in general in ancient times even till around year 500. The biggest problem was to easily construct exact angles. because it is rly hard to construct a triangle ruler with old materials. but a circle can be constructed with a pencil and a string and with 2 circles you can easily construct exact angles.