jetblackcap jetblackcap

03-06-2019
Mathematics

contestada

Please help me out please

Please help me out please class=

Respuesta :

jimrgrant1 jimrgrant1

03-06-2019

Answer:

∠ABD = 20°

Step-by-step explanation:

Since BD is the angle bisector of ∠ABC then

∠ABD = ∠DBC ← substitute values

3x - 1 = 34 - 2x ( add 2x to both sides )

5x - 1 = 34 ( add 1 to both sides )

5x = 35 ( divide both sides by 5 )

x = 7

Hence

∠ABD = 3x - 1 = (3 × 7) - 1 = 21 - 1 = 20°

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