Subject

    Quantitative Aptitude

    Topic

    Areas & Volumes

    If the diagonals of a rhombus are 24cm and 10cm the area and the perimeter of the rhombus are respectively.

    ক)
    10
    খ)
    11
    গ)
    12
    ঘ)
    13

    Explanation

    Area = 12∗diagonal1∗12diagonal2\frac12\ast diagonal1\ast\frac12diagonal2 = 12∗24∗10\frac12\ast24\ast10 sq.cm 12∗daigonal1=12∗24=12cm\frac12\ast daigonal1=\frac12\ast24=12cm 12∗diagonal2=12∗10=5cm\frac12\ast diagonal2=\frac{\displaystyle1}{\displaystyle2}\ast10=5cm side of a rhombus = (12)² + (5)² = 169      => AB = 13cm

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