<em>m<5=40.</em>
<u>a. Given.</u>
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<em>m<2 = 140 degrees </em>
<u>b. given </u>
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<em><5 and <2 are supplementary angles</em>
<u>c. Sum of <5 and <2 is 180 degree.</u>
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<em>< 5 and <2 are same side-interior angles </em>
<u>d. Same side-interior angles are called Consecutive Interior Angles.</u>
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<em>a||b</em>
<u>e. When Consecutive Interior Angles are supplementary (sum 180) the linear are parallel.</u>