BD bisects ABC. m ABC =7x. m ABC = 3x+36. Find m DBC

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11-12-2017
Mathematics

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BD bisects ABC. m ABC =7x. m ABC = 3x+36. Find m DBC

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Kalahira Kalahira · Answer 1 · 2017-12-25T02:42:12+01:00

Kalahira Kalahira

25-12-2017

ABC = 7x ABC = 3x+36 therefore 7x= 3x+36 4x =36 x = 9 Since BD bisects ABC then ACB =2DBC ABC = 2DBC ABC = 7x = 7x9 = 63 There DBC = ABC/2 = 63/2 Answer: DBC = 31.5

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