To find the height of the TV you first need to realize that the question is giving you dimensions for a triangle. 
Every triangle has a hypotenuse and two sides. To find the hypotenuse you square both sides, add them, and then square root. So to find one of the sides you get the hypotenuse, square it, and subtract the square length of the given side. 
The equation is 25^2-20^2.
Which if simplified is 625-400, the then solution is going to be 225. 
You next will square root 225, 225^(1/2). Which your answer should be 15 inches for the missing side length.
        
                    
             
        
        
        
Answer:
do you still need help on tge questio ?
 
        
             
        
        
        
300 text messages. Because there’s a 30 dollar differences. So you’ll multiple 30x10=300
        
             
        
        
        
Answer:
True!
Step-by-step explanation:
If an object travels at a constant speed, then the distance traveled is directly proportional to the time spent traveling, with the speed being the constant of proportionality. The circumference of a circle is directly proportional to its diameter, with the constant of proportionality equal to π.
 
        
                    
             
        
        
        
First shape: no parallel nor perpendicular 
Second shape: parallel sides
Third shape: parallel sides
Fourth shape: perpendicular sides
Fifth: perpendicular sides
Hope this helps!! Have a nice day!!