Question # The length of a diagonal in cms of a rectangle of length ( 5 mathrm{cm} ) and width ( 6 mathrm{cm} ) is:

# The length of a diagonal in cms of a rectangle of length ( 5 mathrm{cm} ) and width ( 6 mathrm{cm} ) is:

(1) ( sqrt{61} )

(2) ( pm sqrt{61} )

(3) ( sqrt{11} )

( (4) pm sqrt{11} )

Solution

Diagonal of rectangle ( =sqrt{(5)^{2}+(6)^{2}} )

( =sqrt{25+36}=pm sqrt{61} )