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If AD/DB = 3/4 and AC = 15 cm, find AE. |
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Answer» basic proportionality theorem. If AD/DB = AE/EC 3/4 = AE/EC EC/AE = 4/3 (EC/AE)+1 = (4/3)+1 (EC +AE)/AE = 7/3 AC/AE = 7/3 15/AE = 7/3 AE = 15×3/7 AE = 45/7 thanks |
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