CIRCLE VOCAB

CIRCLE

• A perfectly round shape
• A line that curves to meet the other end

SEMI CIRCLE

• a half of a circle or of its circumference.

CIRCUMFRANCE

• the enclosing boundary of a curved geometric figure, especially a circle.

RADIUS

• a straight line from the center to the circumference of a circle or sphere. the length of the radius of a circle or sphere. a specified distance from a center in all directions.

AREA OF A CIRCLE

• The formula to find the area of a circle is
• Radius squared times 3.14

DIAMTER

• 1. a straight line passing from side to side through the center of a body or figure, especially a circle or sphere. a transverse measurement of something; width or thickness. synonyms: breadth,

CHORD

• A chord that passes through the center of a circle is called a diameter, and is the longest chord.

CENTER OF A CIRCLE

• A circle is a locus (set) of points in a plane equidistant from a fixed point

PI

• Measurement around the circle
• 3.14

FORMULA

• A=pi*r2
• C=pi*d
• C*2pi r