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Question

If PQRS is a rectangle, then the length of each diagonal is______ cm.


  1. 122


Solution

The correct option is A 122

The diagonals of a rectangle are equal and bisect each other.
SO=QOi.e.,7x2=5x+162x=18x=97x2=7×92               =632               =61 cm

The length of the diagonal SQ
= 2 x SO
= 2 x (7x2)
= 2×61
= 122 cm

The length of the diagonals SQ and PR = 122 cm.                [diagonals are equal in a rectangle]

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