Question

Find the area of the rectangle:

Answer 1

L*W

Answer 2

Area = width x length
\[= 4\sqrt{10} \times (3-\sqrt{10})\]\[= (3)4\sqrt{10} -(\sqrt{10})\times4\sqrt{10} \]\[= 12\sqrt{10} -10\times4 =? \]

Answer 3

Just to let you know, 3 - SquareRoot(10) is a negative number so your area is negative?

Answer 4

@ByteMe Good point!!!

Answer 5

10 * 4 = 40. I knew i had to do with 12 sqrt 10. Thanks for the help guys :)

Answer 6

no problem