Scientific facts:- Unbelievable science facts.

Best Figure Counting Tricks for Triangles, Squares, and Cubes.          With this trick, you can know the total number of triangles, squares and cubes from a figure and answer in 5seconds. (1) Trick for triangle :- (Figure–1)         Now, we will know how to find the total number of triangles from a big triangle if it is divided into several smaller triangles.         If a triangle is divided into n numbers of smaller triangles (the size of each of the smaller triangles may or may not be equal here), then we have a trick to find the total number of triangles (N), i.e :-         N = 1 + 2 + 3 + 4 + .............. + n         Or,       N = n(n+1)/2 Example–1          From Figure–1, n=3 The total number of triangles in Figure–1 (N) = 1 + 2 + 3 = 6 Or,                 N = 3(3+1)/2   ...

  MATHEMATICAL TRICKS OF MULTIPLICATION AND SQUARE         Multiplication is very very essential for every person and competitive students. In competitive exam we take a lot of time to calculate the square of a number or a multiplication of two numbers but with these tricks we can easily calculate the multiplication or squares of any number within 5 to 10 seconds.         You have to keep these tricks in your mind for easy multiplication.         Let's know the tricks :- (1) Tricks–1 :-          When any number has 5 at its unit place, we can easily find the square of its number by applying this trick.         Suppose "★5" is any number whose unit place is always 5 and "★" refers to the number of any digit ("★" is any number and can be a one, two or more than two digit number). Now to calculate (★5)², first we have to calculate the multiplication of "★" & "(★+1)" ...