Calculate 69104

The diagonal of the TV screen is 82 cm, and the height is 40 cm. Calculate the width of the screen.

Correct answer:

a =  71.58 cm

Step-by-step explanation:

u=82 cm b=40 cm  u2 = a2+ b2  a=u2b2=822402=2 1281=71.58 cm

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