TV diagonal

A diagonal TV is 0.56 m long. How big the television screen is if the aspect ratio is 16:9?

Correct answer:

a =  48.8082 cm
b =  27.4546 cm

Step-by-step explanation:

d=0.56 m cm=0.56 100  cm=56 cm  a:b = 16:9 d2 = a2 + b2  d2 = a2 + (9/16 a)2 d2 = a2 + (9/16)2 a2  a2 =  1 + (9/16)2d2  a =  1 + (9/16)2d  a=d 16/162+92=56 16/162+92=48.8082 cm
b=169 a=169 48.8082=27.4546 cm



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Showing 1 comment:
Lilymay
why did it have to be divided by the square root of 16 and 9 squared?





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