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Given: DC is a tangent of E. AE = 20 and DC = 9. What is the measure of AC?
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Given: DC is a tangent of E. AE = 20 and DC = 9. What is the measure of AC?
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May 26, 2019
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Given: DC is a tangent of E. AE = 20 and DC = 9.
What is the measure of AC?
Mathematics
high-school
Maxime Labelle
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Maxime Labelle
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the answer is 41
if AE is 20, so AD is 40.
the measure of angle CDA is 90 degrees.
so we can get help from Pythagorean theorem :
good luck
Nevenoe
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May 30, 2019
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Nevenoe
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