Q12 of 157 Page 760

ABCD is a rectangle whose three vertices are B(4, 0), C(4, 3) and D(0, 3). The length of one of its diagonals is

Distance BD is the length of one of its diagonal.


⇒ So by distance formula,


⇒ Distance BD =


=


=


= 5


Therefore the length of diagonal is 5 units.

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