Answer:
Television should be advertised by 24.9≈25 inches.
Step-by-step explanation:
Height of television = 15.5 inches
Width of television = 19.5 inches
Since we are given that A television is advertised by giving the approximate length of the diagonal of its screen.
So, to calculate How should this television be advertised refer the attached figure
Television is in shape of rectangle
AB = CD = 15.5 inches
AD = BC = 19.5 inches
So, To find the length of diagonal DB , we will use Pythagoras theorem in ΔABD
[tex]Hypotenuse^{2} =Perpendicular^{2} + Base^{2}[/tex]
[tex]DB^{2} =AB^{2} + AD^{2}[/tex]
[tex]DB^{2} =15.5^{2} + 19.5^{2}[/tex]
[tex]DB^{2} =620.5[/tex]
[tex]DB = \sqrt{620.5}[/tex]
[tex]DB =24.9[/tex]
Hence Television should be advertised by 24.9≈25 inches.
