SOLUTION: Television sets: What does it mean to refer to a 20 in. TV set or a 25 in. TV set? A 15 in. TV set also has a width of 12 inches. What is it's height? The height is ______ in

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Television sets: What does it mean to refer to a 20 in. TV set or a 25 in. TV set? A 15 in. TV set also has a width of 12 inches. What is it's height? The height is ______ in      Log On


   



Question 132841: Television sets: What does it mean to refer to a 20 in. TV set or a 25 in. TV set? A 15 in. TV set also has a width of 12 inches. What is it's height?
The height is ______ inches.

Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
THE NORMAL MEASUREMENT OF A TV SET IS THE DIGONAL MEASUREMENT.
USING THE PYTHAGOROEN THERUM [A^2+B^2=C^2] WE GET:
12^2+X^2=15^2
144+X^2=225
X^2=225-144
X^2=81
X=SQRT81`
X=9 INCHES IS THE HEIGHT OF THE TV.
PROOF
12^2+9^2=15^2
144+81=225
225=225