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7th Class Mathematics Algebraic Expressions Question Bank Algebra

  • question_answer
    Write an equation for the following statement. In an isosceles triangle, the vertex angle is twice either base angle. (Let the base angle be b in degrees).

    A)  \[4b=180{}^\circ \]      

    B)  \[2b+c=180{}^\circ \]

    C)  \[2b+2c=180{}^\circ \]      

    D) None of the above

    Correct Answer: A

    Solution :

     \[4b=180{}^\circ \] 


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