Question #54d73

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Answer 1 · 2018-01-22T02:25:21

#15# units

We can use the Pythagorean theorem here, since the diagonal creates a right triangle with a base of #9# units and a height of #12# units.

Let the diagonal be #d#.

#:.d^2=9^2+12^2#

#d^2=225#

#d=15# (because #d>0#, length cannot be negative)

So, the diagonal will have a length of #15# units.

Try drawing the rectangle to scale and then measure the diagonal. You should also get #15#!