Challenge: Print the Angles of a Triangle

Problem statement

Given three sides a, b, and c of a triangle, write a program to obtain and print the values of three angles $A$, $B$, and $C$ rounded to the next integer. Use the following formula:

$a^2 =b^2 +c^2 -2bc(cosA)$

$b^2 =a^2 +c^2 -2ac(cosB)$

$c^2 =a^2 +b^2 -2ab(cosC)$

• Input: The three sides, a, b, and c of a triangle will be given as inputs.
• Output: Print the values of the three angles on the console.