Teach you to draw tangent circles with geometric artboards

In learning the position relationship between circle and circle, we all know that the position relationship between circle and circle is: absent, cut, intersect, inner tangent, inside, the position between them is determined by the center distance and the length of two radii. So if you want to draw three 22-tangent circles, how do you draw them? At this point we can use the geometry of the drawing board, to draw a standard and beautiful graphics.

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The following steps are described:

Step one makes three segments (each of which acts as a radius of three circles long). Open the geometry artboard and use the line segment tool to draw three lines of varying lengths in the blank area of the artboard and mark them as a, B, C;

Make three line segments A, B, C in the geometry artboard example

Step two measures the length of the 3 line segments. Select Line A, B, and C, and execute the measure-length command so that the length of the 3 segments is measured, as shown in.

An example of the length of a, B, and C of three line segments are measured separately

Step three calculates using the geometry artboard calculation function: A+b,b+c,c+a (in the future acting as the center pitch). Execute "Data"--"Calculate" command, calculate the value of A+b,b+c,c+a in the Popup Calculation dialog box;

Example of a value that calculates a+b,b+c,c+a separately

Step four take a little O1 in the blank area of the artboard, select the values of points O1 and a+b, perform "construct"-"circle with center and radius", and circle with a+b as radius;

Example of drawing a circle with a+b radius

Step five in the circle take a little O2, with O2 as the center, B+c for the radius of the circle, the two circles of any intersection as O3 (at this point, three centers all found);

Example of drawing a circle with b+c radius

Step six hides the four, fifth step made of the circle, respectively, with O1,o2,o3 as the center, A, B, c for the radius of the circle (three times), that is the required graphics.

Three 22-Tangent round drawing completion examples

After reading the above tutorial, I mastered the method of drawing three 22 tangent circles in the geometry artboard, which is designed to give you a flexible application after mastering the position relationship of circle and circle. More Teaching Courseware templates free download in the geometric Artboard official website www.jihehuaban.com.cn

Teach you to draw tangent circles with geometric artboards