Python: Get the third side of right angled triangle from two given sides

Last update on April 17 2025 13:06:01 (UTC/GMT +8 hours)

Right Triangle Third Side

Write a Python program to get the third side of a right-angled triangle from two given sides.

Note: Use bitwise operations to add two numbers.

Visual Presentation:

Python: Get the third side of right angled triangle from two given sides

Sample Solution:

Python Code:

# Define a function 'pythagoras' that calculates the missing side of a right-angled triangle.
def pythagoras(opposite_side, adjacent_side, hypotenuse):
    # Check if the opposite side is marked as unknown.
    if opposite_side == str("x"):
        return ("Opposite = " + str(((hypotenuse**2) - (adjacent_side**2))**0.5))
    # Check if the adjacent side is marked as unknown.
    elif adjacent_side == str("x"):
        return ("Adjacent = " + str(((hypotenuse**2) - (opposite_side**2))**0.5))
    # Check if the hypotenuse is marked as unknown.
    elif hypotenuse == str("x"):
        return ("Hypotenuse = " + str(((opposite_side**2) + (adjacent_side**2))**0.5))
    else:
        return "You know the answer!"  # Return this message if all sides are known.

# Test the function with different inputs and print the results.
print(pythagoras(3, 4, 'x'))
print(pythagoras(3, 'x', 5))
print(pythagoras('x', 4, 5))
print(pythagoras(3, 4, 5))

Sample Output:

Hypotenuse = 5.0
Adjacent = 4.0
Opposite = 3.0
You know the answer!

Explanation:

The above Python code defines a function called "pythagoras()" that calculates the missing side of a right-angled triangle using the Pythagorean theorem. Here's a brief explanation:

The function takes three arguments: 'opposite_side', 'adjacent_side', and 'hypotenuse'. One of these sides is marked as 'x', indicating it is unknown and needs to be calculated.
The function uses conditional statements to check which side is marked as 'x' and calculates its value based on the Pythagorean theorem.
If the opposite side is marked as 'x', it calculates and returns the value of the opposite side using the theorem.
If the adjacent side is marked as 'x', it calculates and returns the value of the adjacent side.
If the hypotenuse is marked as 'x', it calculates and returns the value of the hypotenuse.
If none of the sides is marked as 'x', it returns the message "You know the answer!" since all sides are known.
The code then tests the "pythagoras()" function with different inputs, representing various scenarios of known and unknown sides, and prints the results.

Flowchart:

For more Practice: Solve these Related Problems:

Write a Python program to verify if three provided numbers can form a right-angled triangle.
Write a Python program to compute the area of a right-angled triangle given the lengths of two sides.
Write a Python program to determine the missing leg of a right triangle when given the hypotenuse and one leg.
Write a Python program to calculate all interior angles of a right triangle given two side lengths.

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Python Code Editor :

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