Find the length of side A on a triangle where side B is 4 and side C (the hypotenuse) is 5.

A) 4

B) 5

C) 3

D) 2

Your answer is: C) 3

Step-by-step explanation:

The formula used to find side A in this problem is called the Pythagorean Theorum. The formula is as follows: a = the square root of c squared minus b squared. Or, you can say that the hypotenuse is equal to: c = the square root of a squared and b squared added together. This might sound confusing in the start, but here's all you have to do. c^2 = 25. 4^2 = 16. 25 - 16 = 9. The square root of 9 = 3. C) 3 is your answer.