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16 March, 08:17

The sum of the measures of two interior angles of a triangle equals 60°. What is the measure of the third angle? A. 40° B. 90° C. 100° D. 120°

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  1. 16 March, 08:42
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    D. 120 degrees because the internal angles of a triangle have to add up to be 180 degrees, and 180 minus 60 is equal to 120.
  2. 16 March, 10:58
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    D. 120 because all the triangles have a total of 180 degrees and if we subtract 180 - 30 - 30 = 120. The number 30 is the quantity of the two angles.
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