geometry
posted by Louise .
Yuki just bought a big screen TV set. The screen has a diagonal measure of 40 in. If the screen is 32 in. wide, how high is it?

a^2 + b^2 = c^2
32^2 + b^2 = 40^2
b^2 = 1600  1024
b^2 = 576
b = 24
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