Question: 3. Complete the steps to prove statements using linear pairs and vertical angles. 1 10 points Given: m LEDF = 120; mLADB = (3x); m

3. Complete the steps to prove statements using linear pairs and vertical angles. 1 10 points Given: m LEDF = 120; mLADB = (3x); m ZBDC = (2x) Prove: X = 24 E 120 D (2x) (3x) B A What is the missing reason in step 3? Statements Reasons 1. mZEDF=120 given mLADB = (3x) m_BDC - (2x) 2. ZEDF and ZADC are vert. Ls 2. def. of vert. Zs ZEDF = LADC 3. ? 4. mLADC = mZADB + m_BDC 4. _ add. post. 5 . mZEDF = mZADC 5. def. of = 6. mZEDF - mZADB + m_BDC 6. substitution 7. 120=3x+2x 7. substitution 8. 120=5x 8. addition 9. x=24 div. prop. of e

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