SOLUTION: In a triangle ABC,DE is a parallel to BC and D is the mid point of sideAB. Find the perimeter of a triangle ABC when AE =4.5 cm , DE = 5 cm and DB = 3.5 cm

Algebra ->  Parallelograms -> SOLUTION: In a triangle ABC,DE is a parallel to BC and D is the mid point of sideAB. Find the perimeter of a triangle ABC when AE =4.5 cm , DE = 5 cm and DB = 3.5 cm       Log On


   



Question 1063277: In a triangle ABC,DE is a parallel to BC and D is the mid point of sideAB. Find the perimeter of a triangle ABC when AE =4.5 cm , DE = 5 cm and DB = 3.5 cm

Answer by ikleyn(52834) About Me  (Show Source):
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In a triangle ABC, DE is a parallel to BC and D is the mid point of side AB.
Find the perimeter of a triangle ABC when AE =4.5 cm , DE = 5 cm and DB = 3.5 cm
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AC is AE doubled.

AB is DB doubled.

BC is DE doubled.

On mid-line of a triangle see the lesson
    - The line segment joining the midpoints of two sides of a triangle
in this site.