How do you find a right angled triangle in python?

In this tutorial, we are going to learn how to print the right-angled triangle in Python.

Using for loop we can print the right-angled triangle. To understand this you should know the basics of for loop.

To print the right-angled triangle in Python, we can take the input from the user for the length of the triangle.

x=int[input["Enter row number=\n"]]
for i in range[x]:
    for j in range[i+1]:
        print["#",end='']
    print[""]

As you can see, Input is taken from the user as [x]. As we know that a for loop is used for iterating over a sequence. Then using nested for loop, you can print the right-angled triangle.

First of all, a for loop is used for row and inside that, another for loop is used for the column. The range [i+1] indicates that as the number of rows increases, the number of columns will also increase. You can print the right-angled triangle by any of the symbols.

Enter row number=4

Run the code online

As I have given the input as 4. So it will print the right-angled triangle printing the symbol [#] in 4 rows and 4 columns. Often it is done by using the “*”.

Now if we run our program, it will give the output that you can see  below:

#
##
###
####

So, we did it successfully. We able to create a right angle triangle formed with “#” symbol in Python.

Also, read:

• Get the sum of all the factors of a number with Python program

# Checks if triangle is right angled or not using Python

a = float[input["Enter first side of triangle => "]]
b = float[input["Enter second side of triangle => "]]
c = float[input["Enter third side of triangle => "]]

# Checks which side out of three a, b and c is largest
if [a >= b] and [a >= c]:
	largest_triangle_side = a
elif [b >= c] and [b >= a]:
	largest_triangle_side = b
else:
	largest_triangle_side = c

# Applying Pythagorean theorem to check if triangle is Right Angled

# If a is largest side of triangle
if [largest_triangle_side == a]:
	if [b**2 + c**2 == a**2]:
		print["Triangle is Right Angled"]
	else:
		print["Triangle is Not Right Angled"]

# If b is largest side of triangle
if[largest_triangle_side == b]:
	if[c**2 + a**2 == b**2]:
		print["Triangle is Right Angled"]
	else:
		print["Triangle is Not Right Angled"]

# If c is largest side of triangle
if[largest_triangle_side == c]:
	if[a**2 + b**2 == c**2]:
		print["Triangle is Right Angled"]
	else:
		print["Triangle is Not Right Angled"]  

Enter first side of triangle => 1
Enter second side of triangle => 2
Enter third side of triangle => 3
Triangle is Not Right Angled

In this shot, we will discuss how to generate a right-angled triangle using numbers in Python.

We can print a plethora of patterns using Python. The basic and only prerequisite is a good understanding of how loops work in Python. Here, we will be using simple for loops to generate a right-angled triangle using stars and numbers.

Description

A triangle is said to be right-angled if and only if it has one angle equal to 90 degrees.

To execute this using Python programming, we will be using two for loops:

• An outer loop to handle the number of rows.
• An inner loop to handle the number of columns.

Code

Let’s look at the code snippet below to understand it better.

# Number of rows
rows = 5
# Outer loop to handle the rows
for i in range[rows]:
    # Inner loop to handle the columns
    for j in range[i + 1]:
        # Printing the pattern
        print[j+1, end=' ']
    # Next Line
    print[]

  

Explanation

• In line 2, the input for the number of rows [i.e., length of the triangle] is taken.

• In line 5, we create a for loop to handle the number of rows.

• In line 8, we create a nested for loop [inner loop], to handle the number of columns.

• In line 11, we print the pattern, and we have printed j+1, which results in iteration from 1 [since j + 1] to length of i in each row. i keeps increasing with increasing rows, and so the numbers keep increasing as the line number increases.

• In line 14, we use print[] to move to the next line.

CONTRIBUTOR

Vinisha Maheshwari

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