Learning Goal I can prove the following theorems about triangles: The segment joining midpoints of two sides of a triangle is parallel to the third side and half the length. Starting... Getting there... Lesson 8.4 Checkpoint Once you have completed the above problems and checked your solutions, complete the Lesson Che below. Complete the Lesson Reflection above by circling your current understanding of the Learning Goal. 1. Given the figure below, solve for x. Then, find the value of QP. x-3 x+3 G H P 2. Given the figure below, solve for x. Then, find the value of XV. X 3.x 3 x+2 H