Kim designs a walkway along the diagonal of the rectangular lawn shown below.

A rectangle has length equal to 19 meters and width equal to 15 meters. The diagonal of the rectangle is drawn and the measures of the vertex angles are shown to be 90 degrees.

Which statement is true about the length of the walkway?

It is equal to 16 meters because (19 - 15)2 = 16

It is between 10 and 15 meters because square root of the whole of 19 square minus 15 square is equal to 116

It is between 20 and 25 meters because square root of the whole of 15 square plus 19 square is equal to 24.2

It

Question

Kim designs a walkway along the diagonal of the rectangular lawn shown below.
 
A rectangle has length equal to 19 meters and width equal to 15 meters. The diagonal of the rectangle is drawn and the measures of the vertex angles are shown to be 90 degrees.

Which statement is true about the length of the walkway?

It is equal to 16 meters because (19 - 15)2 = 16

It is between 10 and 15 meters because square root of the whole of 19 square minus 15 square is equal to 116

It is between 20 and 25 meters because square root of the whole of 15 square plus 19 square is equal to 24.2

It

anonymous · Answer

http://learn.flvs.net/webdav/assessment_images/educator_geometry_v14/pool_Geom_3641_0400_Subtest_01_04/image0084e270749.jpg

anonymous · Answer

What are you trying to look for ?

anonymous · Answer

It is in the question!

anonymous · Answer

I know it is but I want you to tell me what we are looking for.

anonymous · Answer

Is it between 20 and 25? Not sure but that's what i think it is.

anonymous · Answer

There is an exact answer for it and you can find it using Pythagoras theorem which is

 $$a^2+b^2=c^2$$where c is the diagonal 
a and b are the other sides.