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एक त्रिभुज के कोणो का अनुपात `1 : (2 )/(3 ):3 ` हो तो लघुतम कोण कितना है ?A. `21(4)/(7)`B. `25^(@)`C. `25(5^(@))/(7)`D. `25(5)/(7)` |
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Answer» Correct Answer - C Ratio of angle = `1:2/3:3` `therefore x+(2x)/3 + 3x=180^(@)` `3x+2x+9x=540^(@)` `x=540/14` smallest angle = `540/14 xx 2/3` `=180^(@)/7 =(25)5^(@)/7` |
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