SOLUTION: In triangle ABC, D is the midpoint of line AB and E is the midpoint of line BC. If AC= 3x-15 and DE= 6, what is the value of x?
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Question 951143: In triangle ABC, D is the midpoint of line AB and E is the midpoint of line BC. If AC= 3x-15 and DE= 6, what is the value of x? Answer by edjones(8007) (Show Source):
You can put this solution on YOUR website! The triangles ABC and DEB are similar. The sides of ABC are twice as long as DEB.
3x-15=2*6
3x-15=12
3x=27
x=9
.
Ed
