A) \[{{80}^{o}}\]
B) \[{{75}^{o}}\]
C) \[{{100}^{o}}\]
D) \[{{100}^{o}}\]
Correct Answer: B
Solution :
Let \[x,y,z\]be three angles of the\[\Delta \] Given \[x={{75}^{o}}\]and \[y-z-={{35}^{o}}\]??(i) \[x+y+z={{180}^{o}}\] ?.(ii) \[\Rightarrow \]\[{{75}^{o}}+y+z={{180}^{o}}\] \[y+z={{105}^{o}}\] ?.(iii) From (i) and (iii)\[y={{70}^{o}},z={{35}^{o}}\] From (ii), we get \[x={{75}^{o}}\] \[\therefore \]The measure of largest angle is \[{{75}^{o}}.\]You need to login to perform this action.
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