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Verified answer
Jllh peluru sudah segitiga =180maka 3x+x+2x= 180
6x=180→x=30°
maka sudut M= 3x= 3(30)=90°
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Verified answer
Karena total sudut segi3 ada 180 jadi.180=3x+2x+x
180=6x
180/6=x
30=x
karena yg ditanyakan sudut M jadi...
3 x 30=90°