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# Jejs

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If a flat- screen TV is a rectangle with a 53-inches diagonal and a width of 45-inches, What isheight of the screen?

Guest Feb 17, 2017

#1
+10613
+5

Use Pythagorean theorem

a^ + b^2 = c^2

a^2 + 45^2 = 53^2

a = sqrt(53^2-45^2) = 28 inch height

ElectricPavlov  Feb 17, 2017
Sort:

#1
+10613
+5

Use Pythagorean theorem

a^ + b^2 = c^2

a^2 + 45^2 = 53^2

a = sqrt(53^2-45^2) = 28 inch height

ElectricPavlov  Feb 17, 2017
#2
+6722
+5

If a flat- screen TV is a rectangle with a 53-inches diagonal and a width of 45-inches, What isheight of the screen?

$$w^2+ h^2=d^2$$          $$Pythagoras$$

$$h=\sqrt{d^2-w^2}=\sqrt{(53^2-45^2)\ inch^2}=\sqrt{784\ inch^2}$$

$$h=28\ inch$$

$$The \ height \ of \ the \ screen \ is \ 28 \ inch.$$

!

asinus  Feb 17, 2017

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