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By Heaven Williams. Area of a circle. Equations of a circle. 2. r. A= x A=Area R=Radius 2= square =3.14 or 3. Circumference. The distance around the edge of a circle (or any curvy shape). Radius.
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By Heaven Williams Area of a circle
Equations of a circle 2 r • A= x • A=Area • R=Radius • 2= square • =3.14 or 3
Circumference The distance around the edge of a circle (or any curvy shape).
Radius • The distance from the center to the edge of a circle it is half of the circles diameter.
Diameter • A straight line going through the center of a circle connecting two points on the circumference.
Sample problem 2 r • This circle has a diameter of 20 • It has a radius of 10 • A= x • A=3.14 x 10 • A=3.14 x 100 • A=314 2 Dia=20 R=10