1.

How do you draw a \[\text{90 }\!\!{}^\circ\!\!\text{ }\] angle?

A. By drawing a perpendicular to a line from a point lying on it.  
B. By bisecting a \[\text{120 }\!\!{}^\circ\!\!\text{ }\] angle.
C. By bisecting a \[\text{60 }\!\!{}^\circ\!\!\text{ }\] angle.
D. By drawing multiples of \[\text{45 }\!\!{}^\circ\!\!\text{ }\] angle.
Answer» B. By bisecting a \[\text{120 }\!\!{}^\circ\!\!\text{ }\] angle.


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