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Mathematics 7 Online
OpenStudy (anonymous):

What is the value of y in the parallelogram shown below?

OpenStudy (anonymous):

OpenStudy (zale101):

the sum of all four interior angles is 360

OpenStudy (anonymous):

225=y?

OpenStudy (zale101):

60 +40= 100 360 = 2*100 + 2(y + 35)

OpenStudy (zale101):

solve for y

OpenStudy (anonymous):

im confused

OpenStudy (anonymous):

I need to go now

OpenStudy (zale101):

Since consecutive interior angles are supplementary and equals 180, we can use it

OpenStudy (anonymous):

This is my last question

OpenStudy (zale101):

If the angles lie on opposite sides of the transversal, but not on the same parallel line, they are called alternate interior angles.

OpenStudy (anonymous):

I have to go

OpenStudy (zale101):

180 = 100 + (y + 35) all u need to do is solve for y

OpenStudy (anonymous):

How are you supposed to solve for Y

OpenStudy (anonymous):

y= 45?

OpenStudy (zale101):

since we have 100, we only need a number that adds up to 80 to get 180, so what's the number you add with 35 that equals 80?

OpenStudy (anonymous):

45

OpenStudy (anonymous):

I just said it

OpenStudy (zale101):

y= 45 :D u were correct

OpenStudy (zale101):

u solved it

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