valentina04
valentina04
14-04-2018
Mathematics
contestada
How do you solve question 9? Pls help
Respuesta :
aurorakimber
aurorakimber
14-04-2018
you can use sine law to figure it out
20/3cm = x/7cm
3x = 140
x = 47
but that wouldn't make sense considering the angle is obtuse,
so you could do 180-20-47
and that is 113
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