This is kind of hard for

i need !

Given that de, df, and ef are midsegments of △abc, and de=3.2 feet, ef=4 feet, and df=2.4 feet, the perimeter of △abc is .

An amusement park manager determined that about 23 of all customers would wait in long lines to ride the new roller coaster. which simulation could not be used to answer questions about whether a customer would wait?

Suppose that circtes a and b have a central angle measuring 100. additionally, the measure of the sector for circle a is 10 m2 and for circle b is 40 m2 if the radius of circle a is 6 m, what is the radius of circle b?