Respuesta :

verrge

Answer:

77

Step-by-step explanation:

69+34=103

180-103=77

all triangles add up to 180

I hope this helps!

xavierrepaczkijones

Answer:

The answer is 77

Step-by-step explanation: We know the angles add up to 180 in   a triangle. so we simply do 69+34=103 then we do 180-103= 77