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What is the length of CD? In this diagram, AABC ~ AEDC. 20-% c * 7 21​
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What is the length of CD? In this diagram, AABC ~ AEDC. 20-% c * 7 21​

What is the length of CD? In this diagram, AABC ~ AEDC. 20-% c * 7 21​-example-1
User Bialix
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10 votes
10 votes

Answer:


(BC)/(DC)=(AC)/(EC)


(20-x)/(x) =(21)/(7)


(20-x)/(x) =3


20-x=3x


4x=20


x=5


So, CD=5

OAmalOHopeO

User JoePerkins
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