How to Draw Concentric Circle Method

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Drawing an ellipse is often thought of as just drawing a major and minor axis and and then winging the 4 curves. This is practiced enough for rough drawings; however, this process can be more finely tuned past using concentric circles. When using concentric circles, the outer larger circle is going to have a diameter of the major axis, and the inner smaller circle will accept the diameter of the minor axis. The result will be smaller and easier to draw arcs that are better suited for drafting or performing geometry.

Steps

1. one

   Decide what length the major axis will be.

   • The major axis is the longest diameter of an ellipse.

2. ii

   Draw one horizontal line of major centrality length.

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3. 3

   Mark the mid-indicate with a ruler.

   • This is done by taking the length of the major axis and dividing information technology by ii.

4. 4

   Create a circle of this diameter with a compass.

   • This is started past taking the compass and setting the spike on the midpoint, then extending the pencil to either end of the major centrality.

5. 5

   Determine what length the minor centrality will be.

   • The minor centrality is the shortest diameter of an ellipse.

6. half dozen

   Draw some other line bisecting the major centrality (which volition be the small axis) using a protractor at 90 degrees.

   • Here, you accept the protractor and ready its origin on the mid-point of the major axis. Mark the bespeak at 90 degrees. So swing the protractor 180 degrees and marker that point. At present you can draw the minor axis at its midpoint betwixt or within the 2 marks.

7. 7

   Create a circle of this diameter with a compass.

   • Do information technology the same fashion the previous circumvolve was fabricated.

8. 8

   Dissever the entire circle into twelve 30 caste parts using a compass.

   • This is done by setting your protractor on the major axis on the origin and marking the 30 caste intervals with dots. And then yous can connect the dots through the center with lines.

9. 9

   Describe horizontal lines from the inner circle (except on major and minor axis).

   • These will be parallel to the major centrality, and go outward from all the points where the inner circle and 30 degree lines intersect. Endeavour to depict the lines well-nigh the minor axis a fiddling shorter, but describe them a piddling longer as you move toward the major centrality.

10. 10

    Describe vertical lines from the outer circle (except on major and small axis).

    • These volition be parallel to the minor centrality, and go inward from all the points where the outer circle and thirty degree lines intersect. Try to describe the lines about the minor axis a piffling longer, but draw them a little shorter as you motion toward the major axis. If you notice a horizontal line volition exist also short you can accept a ruler and extend it a trivial before drawing the vertical line.

11. 11

    Darken all intersecting points including the 2 ends on the major (horizontal) and minor (vertical) axis.

12. 12

    Join the points using gratuitous-hand drawing or a French curve tool (more accurate).

    • With free manus cartoon, you do your best to draw the curves past mitt between the points.

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Add New Question

• Question

  How do I describe an ellipse freehand?

  

  When yous freehand an ellipse, endeavour to go along your wrist on the surface y'all're working on. Motion your hand in small and smooth strokes to proceed the ellipse crude. Yous tin can neaten up the lines later with an eraser.

• Question

  How do I observe the modest axis? It's not clear?

  

  Get-go you have to know the lengths of the major and pocket-size axes. Subsequently you've drawn the major centrality, use a protractor (or compass) to draw a perpendicular line through the center of the major axis. Extend this new line half the length of the minor axis on both sides of the major axis. This new line segment is the minor axis.

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Things You'll Need

• Ruler
• Protractor
• Compass
• Newspaper
• Pencil
• French bend (optional)

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Source: https://www.wikihow.com/Hand-Draw-an-Ellipse

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