- Write a C program to print right triangle pattern of multiplication table.

Here is a sample right triangle pattern of multiplication table.

#### Required Knowledge

- For Loop
- printf and scanf function in C

**Algorithm to print triangle pattern of multiplication table**

*This program is similar to right triangle star pattern.*

- Take the number of rows(N) of right triangle as input from user using scanf function.
**Number of integers in K**.^{th}row is always K- In any row R, we will print multiplication table of R-1. Multiplication factor will start from 0 and continue till R-1. For Example, 4
^{th}row will print multiplication table of 3 till 4 terms and from factor 0 to 3.

Here is the matrix representation of the above mentioned pattern. The row numbers are represented by i whereas column numbers are represented by j.

### C program to print multiplication table pyramid pattern

#include<stdio.h> int main() { int i, j, rows; int count = 1; printf("Enter the number of rows\n"); scanf("%d", &rows); for (i = 0; i < rows; i++) { for (j = 0; j <= i; j++) { printf("%d ", i*j); } printf("\n"); } return(0); }

Output

Enter the number of rows 6 0 0 1 0 2 4 0 3 6 9 0 4 8 12 16 0 5 10 15 20 25