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Pagen13
 one year ago
If measure of angle m<7=100degrees find measure of angle 3
Pagen13
 one year ago
If measure of angle m<7=100degrees find measure of angle 3

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mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.2You see the lightblue arrowheads on the two lines? What do they mean about the lines?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.2dw:1444525882695:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.2dw:1444525960356:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.2What do the circled arrowheads above tell you about the lines? Lines are not congruent. Congruent refers to things that can be measured, such as angles, line segments, triangles, etc. When they are congruent, they have the same measure. Lines have infinite length. We don't use the term congruent with lines.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.2Those two arrow heads mean the lines are parallel.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.2Here is a postulate: If two parallel lines are cut by a transversal, then corresponding angles are congruent.

Pagen13
 one year ago
Best ResponseYou've already chosen the best response.1Okay but how do we get the angle 3

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.2When to lines are cut by a transversal, what are corresponding angles?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.2Corresponding angles are on the same side of the transversal, and on the same relative position to the two lines.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.2Angles 1 and 5 are corresponding angles. Since the lines are parallel, angles 1 and 5 are congruent. dw:1444526239058:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.2Angles 2 and 6 are corresponding angles. Since the lines are parallel, angles 2 and 6 are congruent. dw:1444526291617:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.2Angles 4 and 8 are corresponding angles. Since the lines are parallel, angles 4 and 8 are congruent. dw:1444526333827:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.2Using the 3 figures just above and the explanation of corresponding angles & the postulate, what can you conclude about angles 3 and 7?
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