|
SHAPES
|
Circle
AREA = Square of Diameter x .7854
or Radius x 3.1416 |
| CIRCUMFERENCE
= Diameter x 3.1416 |
| DIAMETER
= Circumference ÷ 3.1416 |
| AREA
OF CIRCULAR RING = .7854 x (Outside Diameter Squared
minus Inside Diameter Squared) |
Doubling
diameter increases area four (4) times;
tripling diameter increases area
nine (9) times.
Square / Rectangle
|
| AREA
= Length x Width |
| DIAGONAL
= Square Root of Width Squared + Length Squared. |
SIDE
(Square Only) = Diagonal x .7071
Triangle
AREA = Base x ½ of Perpendicular
Height
Cube |
| AREA
OF SURFACE = Square of Side x 6 |
| VOLUME
= Cube of Side |
DIAGONAL
= Side x 1.732
Cylinder
AREA OF CURVED SURFACE = Diameter
x Length x 3.1416 |
VOLUME
= Square of Diameter x .7854 x Length
Cone
AREA OF CURVED SURFACE = Diameter
of Base x Slant Ht x 1.5708 |
| VOLUME
= Diameter of Base Squared x Perpendicular Height x
.2618 or Area of Base x 1/3 Perpendicular Height |
