|1. Area of the Square A = s2sq.units.|
2. Area of the Rectangle A = lb sq.units.
3. Perimeter of the Rectangle (P) = 2(l+b).
4. Area of Trapezium A = (h/2)(a+b).
5. Simple Interest I = PTR/100.
6. Area of the Triangle A = (1/2)bh.
7. Volume of the Cylinder V = pr2h.
8. Volume of the Cube V = S3.
9. Volume of the Cuboid V = lbh.
10. Average = (Sum of the quantities) / (Number of quantities).
11. C = (5/9)(F-32°) where C is the Celcius degree and F is the Fahrenheit degree.
12. Lateral surface area of Cylinder S = 2prh.
13. Area of sector A = (x/360) * pr2.
14. Area of the four walls A = 2h(l+b).
15. Total surface area of Cylinder A = 2pr(h+r).
16. Total surface area of Cuboid = 2(ab+bh+hl).
17. Profit (P) = Selling price (S) - Cost price (C).
18. Profit percentage = (Profit/Cost price) * 100
19. Loss(L) = Cost price (C) - Selling price (S).
20. Loss percentage = (Loss/Cost price)*100.
21. If 'C' is the cost price, g is the percentage of profit then the selling price S = [(100+g)/100]C.
22. If 'L' is the Loss percentage then the selling price (S) = [(100-L)/100]C.
23. Area of the ring A = p(R2-r2).
24. Diagonals in a Polygon with n sides = [n(n-1)/2] - n.