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Railways Sample Paper RRB (Group D) Sample Test Paper-2

  • question_answer
    The length of two parallel sides of a trapezium are 15 cm and 20 cm. If its area is 175 sq. cm, then its height is :

    A)  10 cm 

    B)              15 cm

    C)  25 cm

    D)                     20 cm

    Correct Answer: A

    Solution :

    [a] Area of trapezium \[=\frac{Sum\,of\,lenght\,of\,parallel\,sides}{2}\times Height\,(H)\] \[175=\frac{15+20}{2}\times H\] \[H=\frac{175\times 2}{35}=10\,\,cm.\]


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