You can put this solution on YOUR website! We will solve this problem using the Pythagorean Theorem, which states that:
Now, given that a = 4cm and b = 3 cm, we will substitute our letters for the corresponding numbers:
This equals:
Adding 16 and 9, we get
We now know what equals, but we need to know what c equals. To find out, we have to do the opposite of what's being done to c. C is being squared, and the opposite of a square is a square root. So, we will take the square root of both sides:
which gives us our final answer:
, so side C of our triangle is 5cm
