1, the sun:
Draw a circle, then draw a small circle inside and fill it with yellow or orange to represent the sun.
2. Apple:
Draw a circle, fill it with red, and then draw a stem at the top to represent the apple.
3. Watermelon:
Draw a circle, fill it with green, and then draw a long bar in the middle to represent the seeds of watermelon.
4. Grapes:
Draw a circle, fill it with purple, and then draw a small circle at the bottom to represent the seeds of grapes.
5. Clocks and watches:
Draw a circle, fill it with white, and then draw numbers and hands inside to indicate the clock.
6. Basketball:
Draw a circle, fill it with blue, and then draw a small circle and an arc in the middle to represent the sewing line and basket of basketball.
7. Football:
Draw a circle, fill it with black, and then draw a small circle and an arc in the middle to represent the sewing line and goal of the football.
8. Eggs:
Draw a circle, fill it with light yellow, and then draw a dark oval on the inside to represent the yolk and protein of the egg.
9, cake:
Draw a circle, fill it with light yellow, and then draw various food patterns on it to represent cakes of various flavors.
10, tire:
Draw a circle, fill it with black, and then draw the tire pattern and logo on it.
Characteristics of circle
1, the circle is a closed curve:
This means that a circle has no beginning or end, and all the points are on the circle.
2, the radius and diameter of the circle:
A circle has countless radii and diameters, and the radius length of the circle inside the same circle is always the same. The diameter is a line segment passing through the center of the circle, connecting two opposite points on the circle. The length of the diameter is twice the radius of the circle.
3. Symmetry:
A circle is symmetrical in any direction, that is, any diameter passing through the center of the circle divides the circle into two completely symmetrical parts.
4. Center of the circle:
The center of the circle is the center of the circle and the starting point of all radii. All points have the same distance from the center of the circle, and this distance is called radius.
5, arc and angle:
Any curve on a circle is called an arc, and the arc on a circle can be measured by angle. The radian of a complete circle is 360 degrees or 2π radian.
6, smooth and closed:
A circle is a smooth and closed curve. Every point on the circle has the same distance from the center of the circle, and every point with the distance r from the center of the circle is on the circle.
7. Area:
The formula for the area of a circle is πr? Where r is the radius of the circle.