Nope you posted this five days ago no need for another answer.
Okay so the first thing you need to do is move the all the variables to one side of the equal sign
To solve this problem, you need to use the Phythagorean theorem c^2 is equal to the sum of a^2 and b^2. If a less than or equal to b and b is less than or equal to c or a^2 plus b^2 is greater than c^2 then it is an acute angle.
Answer:
by using kinetic and potentail energy
