Question

I need help I don't understand this.

Answer 1

Answer:

<1 = 64

Step-by-step explanation:

The exterior angle is equal to the sum of  the opposite interior angles for triangles

40  +<1 = 104

Subtract 40 from each side

<1 = 104 -40

<1 = 64

Answer 2

Answer:

64°

Step-by-step explanation:

angle 1+40°=104°(sum of two non adjacent interior angles is equal to opposite exterior angle)

angle 1=104°-40°

angle 1=64°