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Mathematics 14 Online
OpenStudy (anonymous):

Given DC is a tangent of point E. AE=20 and DC=9. What is the measure of AC?

OpenStudy (anonymous):

OpenStudy (anonymous):

you mean it is a tangent point at D

OpenStudy (anonymous):

nope..thats what the question says

OpenStudy (anonymous):

E is the center of the circle, i believe it should be at point D, otherwise the question wouldn't make much sense

OpenStudy (anonymous):

ok..well IF D was the point..what would the answer be?

OpenStudy (anonymous):

its line DC and line AE

OpenStudy (anonymous):

so what is the measure of line AC..sorry i didnt specify

OpenStudy (anonymous):

|dw:1330490178958:dw| 40^2 + 9^2 =1681 \[\sqrt{1681}\] = 41 41=AC

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