Respuesta :

Answer:

Option A

Step-by-step explanation:

Since, ∠1 is an exterior angle of the given triangle

Measure of angle 1 will be equal to the sum of two opposite interior angles.

m∠1 = 40° + 30°

m∠1 = 70°

Therefore, Option A will be the answer.

Answer:

a

Step-by-step explanation:

AP#X