According to the Triangle Midsegment Thereom, if the midsegment of a triangle is parallel to a side of the triangle, then the midsegment is half the length of side it is parallel to, therefore... 45=(7x+13)/2 And after that, you continue to solve the problem using Algebra 90=7x+13 77=7x 11=x I hope this answer was helpful! :)
