We Do Math.

Probaly all the Mathematicle formulae.

 

Circle : Area = π r2;

 

Circumference = 2 π r.

 

Square : Area = x2 ; Perimeter = 4x.

 

Rectangle: Area = xy ; Perimeter = 2(x+y).

 

Triangle : Area = 12

(base)(height); Perimeter = a+b+c.

 Area of equilateral triangle = 34a2 .

 

Sphere : Surface Area = 4 π r2

; Volume = 43π r3.

 

Cube : Surface Area = 6a2

; Volume = a3.

 

Cone : Curved Surface Area = π rl ; Volume = 13π r2h

 Total surface area = . π r l +π r2

 

Cuboid : Total surface area = 2 (ab + bh + lh); Volume = lbh.

 

Cylinder : Curved surface area = 2 π rh; Volume = π r2h

 Total surface area (open) = 2 π rh; 

 Total surface area (closed) = 2 π rh+2 π 2

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