Question

if two angles of a triangle are 65 and 85 degree.find the mesure of the thired angle​

Answer 1

Answer:

sum of angles in triangle =180°

65°+85°+x°=180°

150°+x°=180°

x=180°-150°=30°

therefore, third angle =30°

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Answer 2

The two angles measure 65° and 85°

Let the third angle be x

65° + 85° + x° = 180° (Angle sum property)

x = 180 - 65 + 85

x = 180 - 150

x = 30°