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How can you determine m∠ABD and m∠DBC if you know m∠ABC and you know m∠ABD=½m∠ABC ?

Sagot :

Devishri1977idn

Answer:

Step-by-step explanation:

m∠ABD=½m∠ABC

So, BD is the angle bisector of ∠ABC.

∠ABD = ∠DBC

So, if we know ∠ABC, then we can find ∠ABD & ∠DBC

Eg:  If  ∠ABC = 50, then  ∠ABD = 50/2 = 25

As  ∠DBC =  ∠ABD

     ∠DBC = 25

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