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Mathematics 16 Online
OpenStudy (anonymous):

I have a super hard geometry question, someone help me PLZ!!!

OpenStudy (anonymous):

Attachment

OpenStudy (anonymous):

Can angle 2 be one of them???

OpenStudy (anonymous):

Angle 3 is supplementry,cause it's opposite. No??

ganeshie8 (ganeshie8):

lets start from \(\angle 16\) first

OpenStudy (anonymous):

kk

ganeshie8 (ganeshie8):

15, 14, 17, 18, 19 - Are any of them supplemental to \(\angle 16\) ?

OpenStudy (anonymous):

15 17 19

OpenStudy (anonymous):

14 is NOT

ganeshie8 (ganeshie8):

actually none of them are supplemental

OpenStudy (anonymous):

WHAT!?!?!!!

OpenStudy (anonymous):

Ohkay i got it now!!

ganeshie8 (ganeshie8):

cuz none of them when added to \(\angle 16\) give us a straight line so, reject 15, 14, 17, 18, 19 lets move on

OpenStudy (anonymous):

6 9 10 13

OpenStudy (anonymous):

i thought angle 16 was 45 degrees.

ganeshie8 (ganeshie8):

we dont know its measure, all we know is the pairs of lines are parallel. thats all

ganeshie8 (ganeshie8):

lets analyze angles 10, 11, 12, 13

OpenStudy (anonymous):

So if we were trying to get the measure of angle 15 we couldnt??

ganeshie8 (ganeshie8):

thats right, we cannot get the measures of 15 or 16 all we have is 15+16 = 90 degrees

OpenStudy (anonymous):

45+45=90

ganeshie8 (ganeshie8):

it doesnt say, red lines are bisecting these angles

ganeshie8 (ganeshie8):

so why wud u assume 45+45 ?

ganeshie8 (ganeshie8):

it can be 30+60 also eh ?

ganeshie8 (ganeshie8):

or 44+46 also who knows

OpenStudy (anonymous):

I think I got this now. B'cause 15+16=90 dgre angle. and 90 divide bu 2 is 45.

OpenStudy (anonymous):

You do have a measure actually as the angle around 1,2,3,4,5 is given to be 65 degrees. It is irrelevant though.

OpenStudy (anonymous):

Howdya get that? O_o

ganeshie8 (ganeshie8):

yes we dont need to use that, it just complicates if we try to find all measures and see whats supplement

OpenStudy (anonymous):

Oh I saw it!!

ganeshie8 (ganeshie8):

your question is about finding angles supplemental to \(\angle 16\) we can find that without finding measures

OpenStudy (anonymous):

However, as ganeshie8 mentioned, it would be an inefficient approach to calculate all of the angles.

OpenStudy (anonymous):

I got that anser already thou

OpenStudy (anonymous):

Anser: 6 9 10 13

ganeshie8 (ganeshie8):

they all are supplemental , correct

OpenStudy (anonymous):

ty

ganeshie8 (ganeshie8):

did u also check the angles 1, 2, 3, 4, 5 ?

OpenStudy (anonymous):

I gave You a medal C:

OpenStudy (anonymous):

65 degres

ganeshie8 (ganeshie8):

they wont be supplemental. so you're correct 6 9 10 13 are the oly supplemental angles. btw who gave u the answer, somebody messaged you ?

ganeshie8 (ganeshie8):

so kind of them

OpenStudy (anonymous):

I figured it out, procces of elimination. :P

ganeshie8 (ganeshie8):

cool sorry i jumped a bit. you're good :)

OpenStudy (anonymous):

Meanie. Ha. I forgive you. C:

ganeshie8 (ganeshie8):

ty lol

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