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The measures of the angles of a triangle are shown below. Find the value of x. 81°, 80°, x°
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The measures of the angles of a triangle are shown below. Find the value of x. 81°, 80°, x°

User Igor Lankin
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Using angle sum property


\\ \sf\longmapsto 81+80+x=180


\\ \sf\longmapsto 161+x=180


\\ \sf\longmapsto x=180-161


\\ \sf\longmapsto x=19

User DarkByte
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