In triangle  abc, the measure of  ∠b  is 90°,  bc=16, and  ac=20. triangle  def  is similar to triangle  abc, where vertices  d,  e, and  f  correspond to vertices  a,  b, and  c, respectively, and each side of triangle  def  is  13  the length of the corresponding side of triangle  abc. what is the value of  sinf?

just take the area of the square and then the area of the circle then subtract the circle area from the squares area

step-by-step explanation:

question: how many people can she serve?

answer: she can serve 16.66666667 people. so she can only give 16 people a complete serving.

question: does she have enough ice cream for her guests?

answer: no. explanation: she only has enough for 16 people to have a full serving. however, she can give a 17th person a partial serving.