Question

2) In A ABC, <A = 60°, <B = 40°, <C=​

Answer 1

Answer:

<A + <B + <C = 180° (Angle sum property)

60° + 40° + <C = 180°

100° + <C = 180°

<C = 180° - 100°

= 80°

Answer 2

Answer:

we know that the sum of the three angle in a triangle is = 180°

as we have two angle given

so the sum of this two angle is = 60+40 = 100

Now subtract 100 from the total sum which is 180°

<C = 180°-(<A+<B) = 180° - 100° = 80°

so <C = 80°.