How to print various triangles using Python

Right angle triangle

rows = int(input(' Number of columns entered: '))
for i in range(1, rows):
print('*' * i)
for i in range(1, rows):
for j in range(i):
print("*", end="")
print("")

Isosceles right angle triangle

rows = int(input(' Number of columns entered: '))
for i in range(1, rows):
print(' * ' * i)
for i in range(1, rows):
for j in range(1, i + 1):
print(" * ", end="")
print("")

Print isosceles triangle

rows = int(input(' Number of columns entered: '))
for i in range(1, rows):
if i % 2 != 0:
str = ('*' * i)
print(str.center(9, ' '))

Square 1

rows = int(input(' Number of columns entered: '))
for i in range(0, rows):
print(" * " * rows)
for i in range(0, rows):
for j in range(0, rows):
print(" * ", end="")
print(" ")

Square 2

print(' Square 2')
for i in range(10):
for j in range(0, 10 - i):
print(end=' ')
for n in range(0, 0 + i):
print(end=' ')
for m in range(0 + i, 10):
print('', end=' ')
for k in range(10 - i, 10):
print('', end=' ')
print('')

Print Inverted Right Angle Triangle

for x in range(10):
for i in range(x, 10):
print('*', end='')
print('')

Print right angle triangle on the same line

print(' Same as 1 Line print right angle 3 Angle ')
for j in range(10):
for x in range(0, j):
print('', end='')
for n in range(j, 19 - j):
print(' ', end='')
for k in range(0, j):
print('', end='')
print('')

Right angle triangle assembled heart shape

print(' Right angle 3 Angle assembled heart ')
for j in range(8):
for x in range(0, j):
print('', end='')
for n in range(j, 19 - j):
print(' ', end='')
for k in range(0, j):
print('', end='')
print('')
for i in range(10):
for j in range(0, 0 + i):
print(end=' ')
for k in range(0 + i, 10):
print('*', end=' ')
print('')

Print Inverted Isosceles Triangle 1

print(' Print inverted isosceles 3 Angle 1')
for j in range(10):
for x in range(0, j):
print(end=' ')
for n in range(j, 15 - j):
print('*', end='')

Print Inverted Isosceles Triangle 2

print(' Print inverted isosceles 3 Angle 2')
for i in range(10):
for j in range(0, 0 + i):
print(end=' ')
for k in range(0 + i, 10):
print('*', end=' ')
print('')

Print two isosceles triangles on the same line

rows = int(input(' Number of columns entered: '))
for i in range(1, rows):
print(' * ' * i)
for i in range(1, rows):
for j in range(1, i + 1):
print(" * ", end="")
print("")

0

Isosceles triangular assembled heart

rows = int(input(' Number of columns entered: '))
for i in range(1, rows):
print(' * ' * i)
for i in range(1, rows):
for j in range(1, i + 1):
print(" * ", end="")
print("")

1