Answer: c = square root of 10
Step-by-step explanation:
First, you find the length of c. To do that, the formula is a^2 + b^2 = c^2
Let's say that 1 = a and 2 = b. Plug in the numbers.
The equation is now 1^2 + 2^2 = c^2, which is 5^2, or 10.
The reason c = square root of 10 and not c = 5 or 5^2 is because the question is asking what the question mark in the square root is and that is the answer to c.
So, 1^2 + 2^2 = 5^2. c = square root of 10 because 10 = 5^2.
But I might be wrong, so I'm sorry if you got the wrong answer.
