How to draw Ellipse with Compass | Easy Geometry

Summary

In this tutorial, viewers learn how to draw an ellipse using a compass through a series of clear, step-by-step instructions. The process begins with drawing a horizontal line and two intersecting circles, leading to the creation of a perpendicular line. After determining key intersection points, the video guides users on measuring and connecting these points to form a perfect ellipse. With a focus on precision and technique, the tutorial is both educational and engaging, encouraging viewers to subscribe for more artistic insights.

Takeaways

• ✏️ Start by drawing a horizontal line of any length on a piece of paper.
• 🌀 Use a compass to draw the first circle, keeping the distance consistent.
• 🔵 Mark a point on the horizontal line to draw a second circle that touches the first.
• 🔤 Label the centers of the circles as O1 and O2 for reference.
• 🔲 To create a perpendicular line, draw arcs above and below from O2 using the distance between O1 and O2.
• 📏 Intersect the arcs from O1 to find two new points for the perpendicular line.
• 🔗 Connect the intersection points to form a line passing through where the circles touch.
• 🌐 Extend lines from the bottom arc to O1 and O2 to create intersecting points A, B, C, and D.
• 🖊️ To draw the ellipse, measure distances from the arcs to points A and B, and similarly for points C and D.
• 🎨 You will achieve a perfect ellipse using just a compass, pencil, and straight edge!

Q & A

What is the first step in drawing an ellipse with a compass?

The first step is to draw a horizontal line of any length on a piece of paper.

How do you create the first circle in the ellipse drawing process?

To create the first circle, take a compass and draw a circle with a distance set on the compass.

What should you do after drawing the first circle?

After drawing the first circle, mark a point on the horizontal line by placing the compass pointer at one edge of the circle.

How is the second circle drawn?

The second circle is drawn by keeping the same distance on the compass and marking it from the point on the horizontal line, ensuring it touches the first circle at one point.

What are the centers of the two circles labeled as?

The centers of the two circles are labeled as O1 and O2.

How do you draw a perpendicular line to the horizontal line?

To draw a perpendicular line, measure the distance between the centers O1 and O2 with the compass, draw two arcs above and below O2, and intersect these arcs with the horizontal line to find two new points.

What do you do after finding the two intersecting points?

After finding the two intersecting points, you draw a line connecting them, ensuring it passes through the point where the circles touch.

What are the points where the lines intersect the circles called?

The points where the lines intersect the circles are labeled as A, B, C, and D.

How do you complete the ellipse?

To complete the ellipse, measure the distance from point A to point B and create an arc that intersects at B, then do the same from point D to point C to create the opposite arc.

What tools are required to draw an ellipse as described in the video?

The tools required are a compass, a pencil, and a ruler or straight edge.