Respuesta :

theleangreenbean

Answer:

n=60

Step-by-step explanation:

The sum of interior angles in a triangle will always be equal to 180. Knowing this, we can set up the following equation:

n+90+30=180

n+120=180

Subtract both sides by 120

n+120-120=180-120

n=60

I hope this helps!

michaelatheswag

Answer:

60

Step-by-step explanation:

if the bottom corner on the left is a right angle, its 90. because we already have 30. its 90+30+120. Triangles total angles is 180.