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  5. The Triangle and its Properties

7th Class Mathematics The Triangle and its Properties Question Bank Properties of Triangle

  • question_answer
    The three angles of a triangle are in the ratio \[1:2:3,\] then the greatest angle is

    A)  \[105{}^\circ \]                        

    B)  \[90{}^\circ \]          

    C)  \[120{}^\circ \]                    

    D)  \[100{}^\circ \]

    Correct Answer: B

    Solution :

    (b): Let \[\angle les\] be \[x,\text{ }2x,\text{ }3x\] \[~\therefore \,\,\,x+2x+3x=180{}^\circ \Rightarrow 3x=90{}^\circ \]


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