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OpenStudy (anonymous):
a 25 inch t.v. set also has a width of 20 inches what is the height of the t.v. set?
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OpenStudy (anonymous):
I got 15 inches in height am I right
OpenStudy (anonymous):
Height = sqrt(25^2 - 20^2) = sqrt(625 - 400) = sqrt(225) = 15
Directrix (directrix):
You can use the Pythagorean Theorem: 25^2 = 20^2 + h^2 to solve and get 15. I used Pythagorean Triples. Have you studied those yet. Big time saver. |dw:1330233278757:dw|
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