Answered

ABC bir üçgen
m(BAC)=X+10
m(ABC)=2X-20
m(BCA)=2x-15
yukarıdaki verilere göre m(ABC) kaç derecedir

Sagot :

Cevap:

x+10+2x-20+2x-15=180

5x=180+25

5x= 215

x=43

m(ABC)=2.43-20

=66

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