Question

Find the measure of the indicated angle

Answer 1

`given\Longrightarrow AB=AC`

`\angle \;C=\angle \:B=60\ [isosceles ~triangle]`

`\angle~A+\angle~B+\angle~C=180`

`x+60+60=180`

`x+120=180`

`x=180-120`

`x=60`

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