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Algebra 8 Online
OpenStudy (bmxlifestyle):

can someone help me with a few questions

OpenStudy (bmxlifestyle):

can someone help me find the value of x,y and z

OpenStudy (lyss):

hi. so for the first triangle on the left, add 45 and 63 to get 108, then subtract that from 180. 180 - 108 = 72 x=72 and since x and y are supplementary, that means they both add to 180 as well. 180 - 72 = 108 so y = 108 now add 108 and 15 to get 123, and subtract that from 180 to get z = 57

OpenStudy (bmxlifestyle):

i have a few more

OpenStudy (bmxlifestyle):

For triangle ABC find the measure of the missing angle if <A = 103 and <B = 64. *

OpenStudy (bmxlifestyle):

In constructing the frame; pictured above, with the top section containing angles of 27° on each end. The side pieces each have 63° angle cur at their top end. Will the side pieces of the frame be parallel? Explain. *

OpenStudy (bmxlifestyle):

@lyss

OpenStudy (bmxlifestyle):

find the measure of a and b

OpenStudy (bmxlifestyle):

@lyss

OpenStudy (lyss):

Okay, for the one question A = 103 and B = 64, that means C = 15 since all triangles add up to 180

OpenStudy (lyss):

http://assets.openstudy.com/updates/attachments/581a2802e4b0b6ac77c072a5-bmxlifestyle-1478109727693-triangle2.jpg as for this one, 90 + (8x-1) + (4x+7) = 180 meaning x = 7 plug 7 in, making B = 55 and A = 35 and C = 90

OpenStudy (bmxlifestyle):

did you figure out the others

OpenStudy (lyss):

the one about the frame is the vertical sides of the side pieces will be parallel but the 63 degrees angles won't be, as they would have to both add up to 180 in order for them to be considered a parallel pair. 63 + 63 = 126, not 180.

OpenStudy (lyss):

And the last one has a right angle and an angle of 72 degrees. 90+72 = 162 180 - 162 = 18. so B = 18 then, since A and B are supplementary, take 180 and subtract 18 from it to find A. 180 - 18 = 162, so A = 162

OpenStudy (bmxlifestyle):

last one

OpenStudy (bmxlifestyle):

OpenStudy (bmxlifestyle):

@lyss

OpenStudy (lyss):

Well, just pretty much that r and m are perpendicular and r and n are perpendicular.

OpenStudy (bmxlifestyle):

thank you for the help

OpenStudy (lyss):

And that the angle off of line n is 90 degrees. But that's given sooo. :P

OpenStudy (lyss):

Of course :-)

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