7.G.B.4: Definitions, Key Concepts & Examples

Front

Formula for area of a circle

Back

A = πr²

Front

Formula for circumference of a circle

Back

C = 2πr

Front

π (Pi) value

Back

Approximately 3.14

Front

Radius definition

Back

Distance from center to edge

Front

Diameter definition

Back

Twice the radius

Front

Relationship between diameter and radius

Back

d = 2r

Front

Circumference in terms of diameter

Back

C = πd

Front

Area unit

Back

Square units

Front

Circumference unit

Back

Linear units

Front

Circle definition

Back

Set of all points equidistant from center