Question

In ∆ABC , angleA= 60° , angleB = 40° , angle C= _____.​

Answer 1

Step-by-step explanation:

Sum of all angles of a triangle is 180°

60 + 40 + x = 180

x is 80°

Answer 2

Answer:

∠C=80°

Step-by-step explanation:

∠A+∠B+∠C=180° (  angle sum property of a triangle )

60°+40°+∠C=180°

∠C=180°-100°

∠C=80°