Question

△ABC ≅ △XYZ. If ∠A = 40° and ∠Y = 80° then ∠C =

Answer 1

∠A = 40°=∠X (corresponding)

∠Y = 80°=∠B (corresponding)

With the angle sum prperty, we know sum of three angles is 180 degrees.

180-(∠A+∠B)=∠C

180-(40+80)=∠C

180-120=∠C

60°=∠C