Find the length of a diagonal of a rectangle of length 9cm and width 4cm ?

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Answer 1 · 2018-04-01T17:30:30

#d=9.85# cm

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You can use the Pythagoras' formula to solve for the length of the diagonal:

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#a=9# cm

#b=4#cm

#d^2=a^2+b^2#

#d^2=9^2+4^2#

#d^2=81+16=97#

#d=sqrt97=9.85# cm