SOLUTION: What does it mean to refer to a 20-in TV set or a 25-in TV set? Such units refer to the diagonal of the screen. A 15-in TV set also has a width of 12 inches. What is its height???

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: What does it mean to refer to a 20-in TV set or a 25-in TV set? Such units refer to the diagonal of the screen. A 15-in TV set also has a width of 12 inches. What is its height???       Log On


   

Question 358429: What does it mean to refer to a 20-in TV set or a 25-in TV set? Such units refer to the diagonal of the screen. A 15-in TV set also has a width of 12 inches. What is its height???
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
12^2+H^2=15^2
144+H^2=225
H^2=225-144
H^2=81
H=SQRT81
H=9 INCHES.
PROOF:
12^2+9*2=15^2
144+81=225
225=225