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OpenStudy (anonymous):
If two sides of a parallelogram are 19 cm and 15 cm, and the angle between the sides is 70 degrees, then the area of the parallelogram is ?
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OpenStudy (anonymous):
can i use the formula to find the area : S = 1/2 ab sin C ?
OpenStudy (anonymous):
It should work, in this case it will be \( ab \sin c \)
OpenStudy (anonymous):
would it be 134 cm as the answer?
OpenStudy (anonymous):
wait just ab sin C ?
OpenStudy (anonymous):
yes, parallelogram -twice the rectangle.
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OpenStudy (anonymous):
so it's correct then ? 134 ?
OpenStudy (anonymous):
134 correct ? guys ?
OpenStudy (anonymous):
Nooo 1 min =.=
Directrix (directrix):
Two times that or 267.81. 134 is the area of the triangle which is 1/2 that of the parallelogram. So double.
OpenStudy (anonymous):
oh i see
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Directrix (directrix):
A diagonal divides a parallelogram into two triangles of equal area.
OpenStudy (anonymous):
ahh so to find the area of the whole you gotta x2
OpenStudy (anonymous):
i see what u mean now :)
Directrix (directrix):
Yes, you got it.
Directrix (directrix):
7:08 EDT here and we're still live.
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OpenStudy (anonymous):
i know right haha
OpenStudy (anonymous):
I think they put the wrong time or something -.-
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