# Week 1 Assignment (Part 2 - Exercise)

18. June 2024

Triangles can be classified based on their angles.

- A right triangle has one angle of 90�
- A obtuse triangle has one angle of more than 90�
- A triangle is acute if all three angles are less than 90�:> [!WARNING]

Write a program that asks the user for the values of three angles in degrees. First check if the entered values are valid. The values are only valid if they are >0 and if their sum is 180�. If the entered values are valid, classify the triangle as right, acute or obtuse.

Below are two example executions of the program with invalid values:

```
Please enter the first angle: 60
Please enter the second angle: 60
Please enter the third angle: 100
The entered values are not valid.
Please enter the first angle: 200
Please enter the second angle: -10
Please enter the third angle: -10
Angles smaller than 0 are not valid.
```

Here is another example execution of the program:

```
Please enter the first angle: 60
Please enter the second angle: 30
Please enter the third angle: 90
The triangle is a right triangle.
```