Circle

CIRCLE

• A circle is a set of all points in a plane at a fixed distance, called the radius.
• The radius of any cirle is any line segment from the center to the circle's perimeter.
• The raidus is half of the diameter.
• Circles are simple closed curves. As they are divded, the division distinguished interior and exterior planes.
• To find the area of a circle square the radius and multiply it to pi ¶ (which is roughly equal to 3.14).
• If the radius is unknown, yet the diameter is given, divide the diameter by two. Remeber that the diameter is twice the radius. With this new calculation, take the radius and sqaure it. Multiply the sqaure to pi ¶.