SOLUTION: Triangles ABC and DEF are similar. Find the perimeter of triangle DEF. (Assume b = 4 cm, c = 5 cm, d = 12 cm, and f = 10 cm.)

Question 1139526: Triangles ABC and DEF are similar.
Find the perimeter of triangle DEF. (Assume b = 4 cm, c = 5 cm, d = 12 cm, and f = 10 cm.)
Answer by ikleyn(52777) (Show Source): You can put this solution on YOUR website!
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The similarity coefficient "k" is the ratio of "f" to "c"   k =  = 2.


Hence, the side "e" is  e = k*b = 2*4 = 8.


Then the perimeter of triangle DEF is  d + e + f = 12 + 8 + 10 = 30 cm.   ANSWER

Solved.

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