1.

In a triangle ABC, if ∠A= 55° and∠B.= 40° find ∠C

Answer»

∠A +∠B + ∠C = 180° 

[Sum of the angles of a triangle 180°] 

55 + 40 + ∠C = 180° 

95 + ∠C = 180“ 

∠C = 180 – 95 

∠C = 85°



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