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Mathematics 20 Online
OpenStudy (anonymous):

Find the value of x and y in the parallelogram below.

OpenStudy (anonymous):

@hartnn

OpenStudy (anonymous):

i havent seen a problen like this

hartnn (hartnn):

Adjacent angles of a parallelogram are supplementary, so y+3y =180 can you find 'y' from here ?

OpenStudy (anonymous):

4y=180 y=45

OpenStudy (anonymous):

howwould i finx do i 3x=180 x=60?

hartnn (hartnn):

sorry for late reply! again Adjacent angles of a parallelogram are supplementary, y+3x =180 and you know y :)

hartnn (hartnn):

or you could use the fact that opposite angles are equal, 3x=3y x=y :)

OpenStudy (anonymous):

45+3x=180 3x=135 x=45 thx alot man

hartnn (hartnn):

welcome ^_^

OpenStudy (anonymous):

i got one quick question

hartnn (hartnn):

sure, ask.

OpenStudy (anonymous):

If a quadrilateral is a parallelogram, then its opposite sides are _____. it the awnser congruent?

hartnn (hartnn):

correct. congruent or equal, both are same and correct.

OpenStudy (anonymous):

thx

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