Python program to print left and right angle triangle
Left Angle Triangle Pattern
*
**
***
****
*****
******
*******
The python code will be:
n=int(input("Enter the no of rows: "))
for i in range(0,n+1):
for j in range(0,i):
print("*",end=' ')
print("\n")
The output will be:

Logic: So in this first of all we are taking input for printing the pattern from the user (till how many rows the user wants to print). After that, we first initialize a loop for our rows from 0 to n+1 and then initialize a second loop for our columns from 0 to I, and in the column loop, we print the star.
So in this way, our program will print the pattern
2. Right Angle Triangle: