The Ddiin Exlicon drawing tool combines a compass, protractor, ruler, golden ratio tool, curved ruler and hexagon and pentagram and the lip stencils all in one device. From accurate ellipses to ...
A tangent to a circle at point P is a straight line that touches the circle at P. The tangent is perpendicular to the radius which joins the centre of the circle to the point P. As the tangent is a ...
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