To draw angles that are greater than 90º, position a 60º/30º set square and a 45º set square as follows: Us e s e t s qua r e s t o d r aw ang l e s g r e a t e r t han 9 0 ° With a 60º/30º set square and a 45º set square, you can also construct some regular polygons given one of their sides. For example, an equilateral triangle or an octagon. Re gu l a r o c t agon Equ i l a t e r a l t r i ang l e 105° 60° 60° 135° 135° C E D F C A B 150° 165° 135° Technical Drawing I 11
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