Triangle ABC is a right triangle Point D is the midpoint of

Last updated: 3/29/2023

Triangle ABC is a right triangle Point D is the midpoint of side AB and p D B 68 E The proof with a missing reason proves that the measure of ZECB is Statement mLADE 68 Given Definition of a right angle Triangle Sum Theorem m2DAE 90 m2AED 22 DE joins the midpoints of AB and AC Given DE is parallel to BC ZECB ZAED m2ECB 22 Reason Corresponding angles are Substitution property