Danman325

In the figure, circle O has radius 6 units. Chord CD has length
8 units and is parallel to
segment KB. If KA = 12 units
and points K, A, O and B are
collinear, what is the area of
triangle KDC? Express your
answer in simplest radical form.

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Danman325

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moneybird

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math counts?

Danman325

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Yup

Danman325

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It says\[8\sqrt5\]

moneybird

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i know why because i thought the radius is 8.

moneybird

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|dw:1326568706650:dw|

Danman325

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ok

moneybird

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CD = 8
8 * 2 sqrt(5) / 2 = 8 sqrt(5)

Danman325

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THX :)

moneybird

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np