Yes It's very simple. All you do is a squared plus b squared = c squared. Heres an example. so say one side of the triangle is 3 and the other side is 4 so first you square the 3 which is 9 then you square the 4 which is 16. Next we add the two squared numbers which is 9+16. that = 25. now we have completed the formula but there is still one last step. The squared number(25) is not the final number. You have to find the square root of 25. Since we squared everything we have to find the squared root. the square root of 25 is 5. 5 is your correct answer! Hope I helped