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Mathematics 13 Online
tigerlover (tigerlover):

In the diagram below, ABC ~ DEC. What is the value of x? http://media.apexlearning.com/Images/200702/01/4418910f-46ed-47cb-967c-a0788bc62b86.gif A. 6 B. 5 C. 3 D. 4

jhonyy9 (jhonyy9):

use the proportionalitie of coresponding sides 21/(24-x) = 7/x 21x = 7(24-x) 21x = 168 -7x 14x = 168 x = 168/14 = 12 x = 12 hope this will help you

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