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Can someone please help me and show all the work step by step please
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1 vote
Can someone please help me and show all the work step by step please

Can someone please help me and show all the work step by step please-example-1
User Noriaki Takamizawa
by
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1 Answer

6 votes

Explanation:


m\angle {ADC}=134°

According to the diagram


\angle {ADB}+\angle{BDC}=\angle{ADC}


\longrightarrow\sf 5x+4+7x-2=134


\longrightarrow\sf 12x+2=134


\longrightarrow\sf 12x=134-2


\longrightarrow\sf 12x=132


\longrightarrow\sf x=\frac {132}{12}


\longrightarrow\sf x=6


m\angle{BDC}=7x-2=7×6-2 =40°

User David Pfau
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