Complete the two-column proof
Given: ∠1 and ∠2 form a linear pair.
m∠1 = ∠2(m∠1)
Prove: m∠1 = 60
(A) ∠1 and ∠2 form a linear pair (A) Given
(B) ∠1 and ∠2 are supplementary (B) Definition of linear pair
(C) ? (C) Definition of supplementary angles
(D) m∠2 = 2(m∠1) (D) ?
(E) m∠1 = 2(m∠1) = 180 (E) ?
(F) 3(m∠1) = 180 (F) Substitiution
(G) 3(m∠1)/3 = 180\3 (G) Division
(H) m∠1 = 60 (H) Substitution
2007-10-29 05:27:41 · 3 answers · asked by Katey 1 in Science & Mathematics ➔ Mathematics
(C) L1+L2 = 180 (C) Definition of supplementary angles
(D) m∠2 = 2(m∠1) (D)We Need to Prove
(E)m∠1 + 2(m∠1) = 180 (E) Given that they are Supplementry
2007-10-29 05:37:38 · answer #1 · answered by Nishant A 2 · 0⤊ 1⤋
m<1+m<2(m<1)=180
2007-10-29 12:32:07 · answer #2 · answered by Anonymous · 1⤊ 0⤋
(C) mâ 1 +mâ 2 = 180 degrees
(D) Given
(E) Substitution Axiom [Statement E = should be +]
(F) Algebra
2007-10-29 12:43:44 · answer #3 · answered by ironduke8159 7 · 0⤊ 0⤋