mathisfun14 mathisfun14

29-11-2017
Mathematics

contestada

The perpendicular bisector of side AB of ∆ABC intersects side BC at point D. Find AB if the perimeter of ∆ABC is with 12 cm larger than the perimeter of ∆ACD.

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23safranj 23safranj

30-11-2017

AB+BC+AC-12=AC+CD+AD
AB+BC-12=CD+AD
AB+BD+CD-12=CD+AD=BD
AB+BD-12=0
AB=12cm

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mikaylatcheung mikaylatcheung

23-11-2021

Answer:

12

Step-by-step explanation:

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