can some one check my answers for my second part of the test
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OpenStudy (openstudy_girl2):
@awesomedude2078
OpenStudy (openstudy_girl2):
hey are you good at math?
OpenStudy (awesomedude2078):
can you tell me your grade
OpenStudy (openstudy_girl2):
8th
OpenStudy (awesomedude2078):
yes
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OpenStudy (hannansm):
where are your answers?
OpenStudy (openstudy_girl2):
sweet its a 15 question test and ill put one up and go on from there there all answered i just need to make sure there all right i can not fail this test
OpenStudy (openstudy_girl2):
In the figure shown, what is the measure of angle x?
Triangle ABC has measure of angle BAC equal to 50 degrees, and the measure of angle ABC is equal to 65 degrees. The side BC of the triangle is extended till D. The angle ACD is labeled as x.
115 degrees
130 degrees
145 degrees
150 degrees
OpenStudy (openstudy_girl2):
i think its A
OpenStudy (awesomedude2078):
a triangle has 180 degrees all together
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OpenStudy (openstudy_girl2):
heres the pic
OpenStudy (awesomedude2078):
find the inside angle and subtract it from 180
OpenStudy (hannansm):
and a straight line also has 180 degrees
OpenStudy (welshfella):
use the theorem : the measure of external angle of a triangle = the sum of the measure of the 2 opposite internal angles.
OpenStudy (openstudy_girl2):
like take 50+65-180=
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OpenStudy (welshfella):
|dw:1481132016647:dw|
OpenStudy (welshfella):
z = x + y
OpenStudy (mathmale):
50+65-180 would come out negative. I doubt that a negative angle would answer this question.
OpenStudy (awesomedude2078):
65 - 180 gives you the answer
OpenStudy (hannansm):
look at welshfella's illustration
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OpenStudy (mathmale):
Not so. That would give us a - answer.
OpenStudy (awesomedude2078):
180 - 65, sorry
OpenStudy (openstudy_girl2):
so im right its A
OpenStudy (hannansm):
yep
OpenStudy (openstudy_girl2):
yeah next Q
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