CalculusPythagorean Theorem
posted by Untamed .
Use the Pythaogorean Theorem to determine the exact length of AB.
Express the answer as A) an exact value in simplest mixed radical form
B) A decimal to the nearest hundredth
The picture is right here, I uploaded it of the diagram.
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CalculusPythagorean Theorem 
Reiny
In ∆ADC
AD^2 + 8^2 = 12^2
AD^2 = 80
in ∆ABD
BD^2 + AD^2 = AB^2
36 + 80 = AB^2
AB = √116 or 2√29
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