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HELP ME!! SOMEBODY PLEASE HELP ME

HELP ME!! SOMEBODY PLEASE HELP ME-example-1
User Unloco
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1 Answer

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6^2 = x (x - 9)
x^2 - 9x - 36 = 0
(x -12)(x + 3) = 0
x - 12 = 0; x = 12
x +3 = 0; x = -3

so in this case x = 12 then DC = 12 - 9 = 3

y^2 = 12^2 - 6^2
y^2 = 144 - 36
y^2 = 108
y = 10.4
User YourMJK
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