Question

Fie trei unghiuri formate in jurul unui punct O cu masurile invers proportionale cu 1supra 12 , 1 supra 13 si 1 supra11.Aflati masurile unghiurilor

Answer 1

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Answer 2

A/12=B/13=C/11, A+B+C=360°, B=13A/12, C=11A/12, inlocuim B si C in suma

A+13A/12+11A/12=360° numitor comun 12, 12A+13A+11A=4320, 36A=4320

A=4320/36=120°, B=13*120/12=130°, C=11*120/12=110°