Posted by mily on Tuesday, June 18, 2013 at 9:01pm.
Triangle ABC is similar to triangle DEF. The sides of ABC are 5,8 and 11. What is the length of the shorttest side of DEF if its perimeter is 60?

geometry  Reiny, Tuesday, June 18, 2013 at 10:16pm
Since the sides must be in the same ratio...
let the sides of the new triangle be
5x, 8x, and 11x
5x + 8x + 11x = 80
solve for x, then find 5x

geometry  Reiny, Tuesday, June 18, 2013 at 10:17pm
5x + 8x + 11x = 60 , hit the wrong key

geometry  Endalamaw, Thursday, April 30, 2015 at 9:41am
12.5

geometry  kathy, Tuesday, June 9, 2015 at 1:57pm
mc0691.jpg
In mc0692.jpg, FE = 13 and mc0693.jpg. Find DF to the nearest tenth.
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