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A wide screen television display measures approximately 15 inches high and 27 inches wide. A television is advertised by giving the approximate length of the diagonal of its screen. How should the television be advertised?

A36 inches
B31 inches
C30 inches
D21 inches

Verified Answer :

hanvoldj

If you draw a line diagonal from one top corner to the opposite bottom corner you will have made 2 triangles. Then you can use the Pythagorean theorem to figure out the diagonal measure (or hypotenuse of the triangle.
c squared=15 squared + 27 squared
c squared= 225+729
c squared= 954
c= square root of 954
c=30.88
I would round that up to 31 inches

B.31 inches, I got this from 30.88 and I rounded.
1st. Draw a line diagonal from one top corner to the opposite bottom corner(you will have 2 triangles)
2nd.Pythagorean theorem to figure out the  hypotenuse of the triangle.
 c^2=15^2 + 27^2 c^2= 225+729 c^2= 954 c= square root of 954 c=30.88, aka 31 inches.

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