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.
It is easy to draw an equilateral triangle without a protractor. That gives a 60 degree angle. It is then simply a matter of bisecting the 60 degree angle, using an unmarked rule and compass, to get a 30 degree angle.
You use a protractor
Yes by bisecting an angle of 140 degrees with a compass
With a protractor.
To make a 70-degree angle, you can use a protractor. Place the protractor's center point at the angle's vertex, ensuring one side aligns with the baseline of the protractor. Then, find the 70-degree mark on the protractor's curved edge and draw a line from the vertex through this mark. Alternatively, using a compass and straightedge, you can construct a 60-degree angle and then bisect it to create a 30-degree angle, adding them together to achieve a 70-degree angle.
It is easy to draw an equilateral triangle without a protractor. That gives a 60 degree angle. It is then simply a matter of bisecting the 60 degree angle, using an unmarked rule and compass, to get a 30 degree angle.
Use a protractor.
You use a protractor
Yes by bisecting an angle of 140 degrees with a compass
With a protractor.
To make a 70-degree angle, you can use a protractor. Place the protractor's center point at the angle's vertex, ensuring one side aligns with the baseline of the protractor. Then, find the 70-degree mark on the protractor's curved edge and draw a line from the vertex through this mark. Alternatively, using a compass and straightedge, you can construct a 60-degree angle and then bisect it to create a 30-degree angle, adding them together to achieve a 70-degree angle.
You measure it with a protractor.
You can use a protractor.
With a protractor.
With a protractor
With a protractor
A protractor.