Let's proceed to the fun part here below we have a right triangle that has 2 lengths down for us already 3in and 12in but length a is missing.🙀

Don't worry he formula is very simple it's a^2 + b^2= c^2. All you have to do is plug in the units.🔢

As u see above we are missing length a so we leave it blank.But how do we know which one is b or c😥.Simple... c is the longest length and the hypothenuse is across the square of he right triangle and b and a will always be the shortest lengths.😉👍🏻

Now that you multiply both sides by themselves you should of got 9 for b and 144 for c😁.Now we must get a by itself so we can find its value,but how do we do that?🤔Well subtract b which is 9 and you do it aswell on the other side because what you do to one side you do it to another.😏You should of got a=135

Now remember in the formula that at the beginning everything was square well now you do the opposite and you square root it and a should be........😮

But there's another way that you are going to have to solve different problems.😟😨

This time you have length a and b but not c... Oh no😖.

Same process you plug in the units for length a and b which is 5 and 6 square equals c^2.Leave c blank.Now square a and b and you should get 25 and 36 but instead of subtracting now you must add to get the total of c which is 61.Square root 61 and c should equal 7.810.😊😎🤓🤓🤓

Conclusion