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Help me find #18 AND #19 PLEASEEE THANK YOUUUUU

Help Me Find 18 AND 19 PLEASEEE THANK YOUUUUU class=

Sagot :

Answer:

see explanation

Step-by-step explanation:

(18)

Since BD is an angle bisector , then

∠ DBC = ∠ ABD = 57°

∠ ABC = ∠ ABD + ∠ DBC = 57° + 57° = 114°

(19)

Since BD is an angle bisector , then ∠ ABD = ∠DBC

∠ ABC = 110° , so

∠ ABD = ∠ DBC = 110° ÷ 2 = 55°

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