C=20 units (They didn't give the unit in the problem so if you want just write 20.)
Step-by-step explanation:
You need to solve for c. So first you have to use the equation.
We already know a and b so no we plug them in.
16^2 + 12^2 = c^2
When a number is squared or written as to the power of two you simply have to multiply that number by itself. So 16^2=256 and 12*12=144
256+144=c^2
c^2=400
Now we have to do another step because we don't want to know c^2 but want to know c. Now we have to find the square root of 400. The answer is 20 because 20*20=400.
