Which of the following sets of numbers could not represent the three sides of a triangle A: 12,15,26
b:14,25,38
C: 10,20,31
D: 9,23,31

Which of the following answers is 5/25 simplified? 1/5 5/5 2/5 1/25

Determine whether the quadrilateral below is a parallelogram. justify/explain your answer (this means back it up! give specific information that supports your decision. writing just "yes" or "no" will result in no credit.)

What is the area of the triangle 10 13 12