kalizeller
kalizeller
07-03-2018
Mathematics
contestada
Please help !!! Need fast
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choixongdong
choixongdong
07-03-2018
4x+30=90
4x = 60
x = 15
answer is B. 15
Answer Link
Bladerunner1976
Bladerunner1976
07-03-2018
Since b and d are perpendicular the angles they form are 90 degree angles. Also given that a and b are parallel the angles between a and d are the same as those with b and d.
SO we can say that 4x + 30 = 90
4x = 60
x = 15
Answer Link
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