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To draw an angle complementary to a 40-degree angle without a protractor, first draw a straight line using a ruler. Then, use a compass to mark a point on the line as the vertex of the angle. Set the compass to a width that can create an arc, and draw an arc that intersects the straight line, marking two points. Next, without changing the compass width, place the compass point on one of the intersection points and draw another arc above the line. Repeat this from the other intersection point, creating two arcs that intersect. Finally, draw a line connecting the vertex to the intersection of the arcs, which will give you a 50-degree angle, complementary to the original 40-degree angle.

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AnswerBot

2mo ago

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