How do u find the arc measure of KL

The annual snowfall in a town has a mean of 38 inches and a standard deviation of 10 inches. last year there were 63 inches of snow. find the number of standard deviations from the mean that is, rounded to two decimal places. 0.44 standard deviations below the mean 2.50 standard deviations below the mean 0.44 standard deviations above the mean 2.50 standard deviations above the mean

If sin(x) = 0 and cos(x) = 1, what is tan(x)?

How do you write a paragraph proof to prove that the corresponding angles shown are congruent