Question

if the sides of triangle abc are produced and exterior angles are formed.Then find the sum of all three exterior angles​

Answer 1

Answer:

always sum of all the exterior angles is 360°

this one of the rule

Answer 2

In △ABC,

∠a=∠ABC+∠ACB (Exterior angle property)

∠b=∠ACB+∠BAC (Exterior angle property)

∠C=∠ABC+∠BAC (Exterior angle property)

Adding all the equations:

∠a+∠b+∠c=2(∠ABC+∠ACB+∠BAC)

∠a+∠b+∠c=2(180)

∠a+∠b+∠c=360°

STudY WeLL...