5th Class Mathematics Geometry Question Bank Geometry

  • question_answer
    Number of degrees in two and half right angles is _______.

    A) 245                             

    B) 225          

    C) 200                             

    D) 180

    Correct Answer: B

    Solution :

    Two right angles = \[2\times {{90}^{o}}={{180}^{o}}\] Half right angles \[=\frac{1}{2}\times {{90}^{o}}={{45}^{o}}\] Total two right angles and one half right angle \[\frac{\begin{align} & 180{}^\circ  \\  & +45{}^\circ  \\ \end{align}}{225{}^\circ }\]


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