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PLS HELP ME FIND THE ANSWER OF THIS I CANT GET THE ANSWER AND IM CONFUSED

PLS HELP ME FIND THE ANSWER OF THIS I CANT GET THE ANSWER AND IM CONFUSED-example-1
User PeterJ
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1 Answer

2 votes

The Angles (2x + 30)° and (2x + 10)° are forming linear pair , so


\hookrightarrow \: 2x + 30 \degree+ 2x + 10 \degree= 180 \degree


\hookrightarrow \: 4x + 40\degree = 180\degree


\hookrightarrow \: 4x = 180\degree - 40\degree


\hookrightarrow \: x = 140\degree / 4


\hookrightarrow \: x = 35\degree

now , let's find Angle BOC :


\hookrightarrow2x + 10\degree


\hookrightarrow \: (2 * 35)\degree + 10\degree


\hookrightarrow \: 70\degree + 10\degree


\hookrightarrow \: 80\degree

User Ankur Singh
by
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