Answes for l, m and n are all parallel and cut by two transversal lines, find the value of a. 6
12
m2
T
33
72

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Which inequality has a dashed boundary line when graphed ?

1. ∠1 is complementary to ∠2 and ∠3 is complementary to ∠2. subtraction property of equality 2. m∠1 + m∠2 = 90 and m∠3 + m∠2 = 90 substitution 3. m∠1 + m∠2 = m∠3 + m∠2 definition of complementary 4. m∠1 = m∠3 given