Triangle ABC is an isosceles triangle in which side
AB = AC. What is the perimeter of triangle ABC?
5 + units
10 + units
units
50 units

In a certain pentagon, the interior angles are a,b,c,d,e where a,b,c,d,e are integers strictly less than 180. ("strictly less than 180" means they are "less than and not equal to" 180.) if the median of the interior angles is 61 and there is only one mode, then what are the degree measures of all five angles?

Airline passengers arrive randomly and independently at the passenger-screening facility at a major international airport. the mean arrival rate is 10 passengers per minutes. compute the following probabilities. p(x = 4) p(x > 11)

A. 90 degrees b. 45 degrees c. 30 degrees d. 120 degrees