Mathematics
20 Online
OpenStudy (anonymous):
geometry help?
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OpenStudy (anonymous):
ganeshie8 (ganeshie8):
starting wid finding \(m\angle R\)
ganeshie8 (ganeshie8):
*Start
OpenStudy (anonymous):
82
ganeshie8 (ganeshie8):
how 82, can u show the work
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OpenStudy (anonymous):
i did 118-36
ganeshie8 (ganeshie8):
why
OpenStudy (anonymous):
All the angles must add up to 180
ganeshie8 (ganeshie8):
this problem is more trickier than that. we need to find \(m\angle R \) first
OpenStudy (anonymous):
i just thought because theres m<s=36 then mRS=118
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OpenStudy (anonymous):
Why couldn't she just subtract angle RS from 180?
ganeshie8 (ganeshie8):
ok i got u. 118 - 36 is not correct
ganeshie8 (ganeshie8):
180-RS is also incorrect
ganeshie8 (ganeshie8):
\(m\angle R = 90 + (180-118)/2 = 121 \)
\(m\angle S = 36\)
\(m\angle U = ?\)
OpenStudy (anonymous):
Ahh I got it.
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ganeshie8 (ganeshie8):
good :)
ganeshie8 (ganeshie8):
@vivianrush since you knw 2 angles in a triangle, you can use triangle sum property to find the third side :-
121+36+ U = 180
U = 180 - 157 = 23
ganeshie8 (ganeshie8):
see if that makes some sense
OpenStudy (anonymous):
so u would be 23
ganeshie8 (ganeshie8):
yep ! last q u closed halfway. did u get solution for geom5.png ?
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OpenStudy (anonymous):
yes i did it was 44 if i remember correctly
ganeshie8 (ganeshie8):
44 is correct for geom5. good work !