SOLUTION: please help!
Given 2 similar tirangels, Triangle ABC and Triangle DEF, if AB=7 and DE=12 and AC=8, then DF = _____. (round to the nearest tenth.)
A. 4.7
B. 13.7
C. 14.0
Algebra.Com
Question 49700: please help!
Given 2 similar tirangels, Triangle ABC and Triangle DEF, if AB=7 and DE=12 and AC=8, then DF = _____. (round to the nearest tenth.)
A. 4.7
B. 13.7
C. 14.0
Thank you!
Answer by tutorcecilia(2152) (Show Source): You can put this solution on YOUR website!
You are working with similiar triangles which is the same as working with proportions. Compare like-sides:
7/8 = 12/x
7x=(8)(12) [Cross-multiply]
7x=96
x=13.71
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