Răspunsuri

2014-04-24T21:28:20+03:00
A=2B
C-B=48=> c=48+B

A+B+C=180
2B+B+48+B=180
4B=180-48
4B=132
B=33

A=2B
A=2*33
A=66

C=48+33
C=81
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2014-04-24T21:29:51+03:00
Notezi unghiul B=x
A=2x
C=y
2x+x+y=180
y-x=48⇒y=48+x
3x+y=180
3x+48+x=180
4x+48=180
4x=180-48
4x=132
x=33=<b
A=2*33=66
C=180-99=81



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