Posted by Jenny on Friday, January 14, 2011 at 9:04pm.
A spotlight is attached to the ceiling 2 feet from one wall of a room and 3 feet from the wall adjacent. How many feet is it from the intersection of the two walls?
a. 4
b. 5
c. 3 square root of 2
d. square root of 13
e. 2 square root of 3

math  helper, Friday, January 14, 2011 at 9:18pm
if you can picture this, it forms a rt triangle with the shortest leg 2, the longer leg 3, and you are looking for the hypotenuse.
So, h^2 = 2^2 + 3^3
h^2 = 4 + 9
h^2 = 13
h = sqrt 13

math  Jenny, Friday, January 14, 2011 at 9:28pm
Thank you!

math  helper, Friday, January 14, 2011 at 9:43pm
you're welcome
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