Can y’all help me it’s on Surface Area

Which property is illustrated by the statement given below? raj raj.

The lengths of nails produced in a factory are normally distributed with a mean of 4.91 centimeters and a standard deviation of 0.05 centimeters. find the two lengths that separate the top 4% and the bottom 4%. these lengths could serve as limits used to identify which nails should be rejected. round your answer to the nearest hundredth, if necessary.

Iam a rectangle. my perimeter is 60 feet. how much are do i cover?