| A | B |
| Area of a sphere | 4 pi r2 |
| Volume of a sphere | 4/3 pi r3 |
| Length of a segment in a secant and tangent | x2= a (a+b) |
| Lateral surface area of cone/pyramid | a=1/2 lp |
| Equation of a circle (h,k-center) | (x-h)squared + (y-k)squared=r squared |
| Trig formula | c2=a2+b2-2ab(cosc) |
| Area of a Triangle (trig) | 1/2a x sinb x c |
| Length of a segment in 2 secants | x(x+y)=a(a+b) |
| Area of equilateral triangle | s2 x s.r. of 3/4 |