# Python: Calculate the hypotenuse of a right angled triangle

## Python Basic: Exercise-60 with Solution

Write a Python program to calculate the hypotenuse of a right angled triangle.

From Wikipedia,

A right triangle or right-angled triangle, or more formally an orthogonal triangle, is a triangle in which one angle is a right angle. The relation between the sides and angles of a right triangle is the basis for trigonometry. The side opposite the right angle is called the hypotenuse.
If the lengths of all three sides of a right triangle are integers, the triangle is said to be a Pythagorean triangle and its side lengths are collectively known as a Pythagorean triple.

**Pictorial Presentation:**

**Sample Solution-1:**

**Python Code :**

```
from math import sqrt
print("Input lengths of shorter triangle sides:")
a = float(input("a: "))
b = float(input("b: "))
c = sqrt(a**2 + b**2)
print("The length of the hypotenuse is:", c )
```

Sample Output:

Input lengths of shorter triangle sides: a: 3 b: 4 The length of the hypotenuse is: 5.0

## Visualize Python code execution:

The following tool visualize what the computer is doing step-by-step as it executes the said program:

**Sample Solution-2:**

**Python Code:**

```
def test(x, y):
h = (x**2 + y**2)**0.5
return h
print(test(3,4))
print(test(3.5,4.4))
```

Sample Output:

5.0 5.622277118748239

**Flowchart:**

## Visualize Python code execution:

The following tool visualize what the computer is doing step-by-step as it executes the said program:

**Python Code Editor:**

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## Python: Tips of the Day

**Builds a list, using an iterator function and an initial seed value:**

Example:

def tips_unfold(fn, seed): def fn_generator(val): while True: val = fn(val[1]) if val == False: break yield val[0] return [i for i in fn_generator([None, seed])] f = lambda n: False if n > 50 else [-n, n + 10] print(tips_unfold(f, 10))

Output:

[-10, -20, -30, -40, -50]

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