Use a compass to draw two tangent circles of equal size passing through the tangent point, connecting the centers of the two circles, and then drawing a perpendicular line through the tangent point. Pick any point on the vertical line, the specific method is as follows:

1. Use a ruler to draw a straight line, and use a point on this straight line to draw a circle with a radius of 2 cm, as shown in the figure below.

2. Draw a circle with the same radius of 2 cm next to the already drawn circle. Note that the two circles must be tangent on the straight line, as shown in the figure below.

3. Select the left circle point as the center, and any point on the right side of the right circle as the starting point (the radius should be 6cm at this time) to make a circle, and draw until the tangent line of the two circles stops. As shown in the picture below, a little more is drawn here to see clearly.

4. As in the third step, select the right circle point as the center, and any point on the left side of the left circle as the starting point (the radius should be 6cm at this time) to make a circle and draw it to two The tangent line of the circle stops. As shown in the picture below, a little more is drawn here to see clearly.

5. Finally, erase the lower semicircles of the two small circles and the excess parts of the two large circles to obtain a standard heart shape. The specific completed picture is as shown below.

Notes

The intersection point between the horizontal half and the vertical two-thirds must be the point where the heart-shaped concave point is drawn. The midpoint of the bottom line is where the line intersects. Divide four line segments horizontally and point out the quarter and three-quarter points. Use a smooth arc along the square to intersect the upper quarter, and connect the three-quarter points, concave points and the midpoint of the bottom line to form a heart shape.