SOLUTION: If two sides of a triangle measure 30 and 60, which of the following cannot be the measure of the third side? A) 30 B) 31 C) 40 D) 60

Algebra ->  Triangles -> SOLUTION: If two sides of a triangle measure 30 and 60, which of the following cannot be the measure of the third side? A) 30 B) 31 C) 40 D) 60      Log On


   



Question 497620: If two sides of a triangle measure 30 and 60, which of the following cannot be the measure of the third side?
A) 30
B) 31
C) 40
D) 60

Answer by cleomenius(959) About Me  (Show Source):
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A, thirty would not be a valid triangle as by the Trianlge Inequality theory, the sum of any two angles in a triangle must be greater than the third angle.
Cleomenius.