# Python Math: Convert degree to radian

## Python Math: Exercise-1 with Solution

Write a Python program to convert degrees to radians.

Note : The radian is the standard unit of angular measure, used in many areas of mathematics. An angle's measurement in radians is numerically equal to the length of a corresponding arc of a unit circle; one radian is just under 57.3 degrees (when the arc length is equal to the radius).

Test Data:

Degree : 15

Expected Result in radians: 0.2619047619047619

**Sample Solution-1:**

**Python Code:**

```
pi=22/7
degree = float(input("Input degrees: "))
radian = degree*(pi/180)
print(radian)
```

Sample Output:

Input degrees: 90 1.5714285714285714

**Pictorial Presentation:**

**Flowchart:**

**Sample Solution-2:**

Use math.pi and the degrees to radians formula to convert the angle from degrees to radians.

**Python Code:**

```
from math import pi
def degrees_to_rads(deg):
return (deg * pi) / 180.0
print(degrees_to_rads(180))
print(degrees_to_rads(90))
```

Sample Output:

3.141592653589793 1.5707963267948966

**Flowchart:**

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**Python Code Editor:**

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