Circles Flashcards
1
Q
What is the formula for circumference of a circle
A
C= 3.14 * Diameter
2
Q
What is the formula to calculate the Area of a circle
A
A= 3.14 * Radius squared
3
Q
Calculate the Length of the arc
A
Length of the Arc
Angle
——— 3.14 * Diameter
360
4
Q
Calculate the Sector Area
A
Sector area =
Angle
——— * 3.14 *Radius squared
360
5
Q
Calculate the length of the arc when the angle is NOT given
A
Angle = Length of the arc
———————— *360
3.14 * Diameter
6
Q
Calculate the sector area when the angle is NOT given
A
Angle = Sector area
—————- * 360
3.14 * Radius Squared
