الهندسة والقياس: منصف الزاوية

The video tutorial explains how to bisect an angle using a compass and a ruler. It begins by defining an angle bisector as a ray that divides an angle into two equal parts. The tutorial then provides a step-by-step guide on how to draw an angle bisector. First, a small arc is drawn from the angle's vertex, intersecting the angle's sides at two points. These points are labeled, and arcs are drawn from each point to intersect at a new point. Finally, a line is drawn from the angle's vertex to this intersection point, completing the angle bisector.

What is the purpose of an angle bisector?

• To measure the length of an angle

• To divide an angle into two equal parts

• To create a right angle

• To draw a perpendicular line

What is the first step in constructing an angle bisector?

• Draw a straight line

• Open the compass to a wide angle

• Place the compass at the angle's vertex

• Use a protractor to measure the angle

After marking the intersections on the angle's sides, what should you do next?

• Close the compass

• Draw a straight line through the vertex

• Name the intersection points

• Erase the initial arc

How do you ensure the arcs intersect at the correct point?

• Measure the distance with a ruler

• Use the same compass width for both arcs

• Draw multiple arcs

• Adjust the compass width

What is the final step in constructing the angle bisector?

• Draw a circle around the angle

• Erase all construction lines

• Measure the angle with a protractor

• Draw a line connecting the vertex to the intersection point