62 - 4 = 58
58 / 2 = 29
The width is 29.
Answer: √−1=i.
Step-by-step explanation: When we say that the square root of a negative number "doesn't exist", we mean that there is no real number solution. However, if we consider complex numbers, we then get a solution to √−1=i.
91 ! just use a calculator or do it by hand