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OpenStudy (softballgirl372015):
love the elmo :)
OpenStudy (anonymous):
Question?
OpenStudy (softballgirl372015):
he is probably writing it now...
OpenStudy (anonymous):
OpenStudy (softballgirl372015):
i think the answer is b
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OpenStudy (anonymous):
19. DE II AB.
Hence <DCE = <ACB, which is pretty much the same angle, and
<CDE = <CAB, corresponding angles are equal.
Hence Tri. DCE is similar to ACB. by AA.
So corresponding sides are proportional; if u can hence find out X and then BC
OpenStudy (softballgirl372015):
you have to set up proportions since the two triangles are similar.
OpenStudy (anonymous):
and there is a VERY simple way to write the proportional sides.
suppose 123 similar to 456, u can write 12/45 = 23/56 = 13/46
(check the corresponding characters.)
same way u can write it here and evaluate. cheers! :)
OpenStudy (softballgirl372015):
\[\frac{ x+3 }{ 15}=\frac{ 2x+2 }{ 24 }\]
OpenStudy (softballgirl372015):
you then have to solve for x and then plug x back into (x+3) and (x-1) and add the two nnumbers and then you get 16
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