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LaynaMae
Help pleaseee ! FAN AND MEDAL WILL BE REWARDED :)
How did you get that ?
AO is the same length as BO, and CO is the same length as DO, therefore its three times the length of CO
|dw:1367965669369:dw| From the drawing Triangle DOC and triangle AOB are similar . Because they have 3 sets of congruent angles so the sides are proportional.