Question 897950
We use the pythagorean theorem to find the missing side of the right triangle.


a^2 + b^2 = c^2


3^2 + b^2 = (sqrt(10))^2


9 + b^2 = 10


b^2 = 10 - 9


b^2 = 1


b = sqrt(1)


b = 1


The missing side is 1 unit.