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 ->
Linear-equations
-> 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
Log On
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
