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7th Class Mathematics Perimeter and Area Question Bank Perimeter and Area

  • question_answer
    In the given diagram, PQU is an equilateral triangle, QRVU is a square and RSTU is a rhombus. Find the perimeter, (in cm) of the whole diagram,               

    A)  17                  

    B)  21                  

    C)         26      

    D)         27

    Correct Answer: D

    Solution :

            Since PQU is an equilateral triangle. \[\therefore \]  \[PQ=PU=QU=4\,cm\] Also, QUVR is a square. \[\therefore \]  \[QU=UV=VR=QR=4\,cm\] Also, RUTS is a rhombus. So, \[UT=TS=\text{ }SR=\text{ }RU=5cm\] Now, required perimeter \[=PU+UT+TS+SR+QR+PQ\] \[=(4+5+5+5+4+4)\,cm=27\,cm\]


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