Respuesta :
There are 4 triangles, all in all.
The total interior angle is 180.
180 = 69 + 43 + (1)
(1) = 180 - 69 - 43
(1) = 68
180 = 112 + 41 + (2)
(2) = 180 - 112 - 41
(2) = 27
180 = 66 + 44 + (3)
(3) = 180 - 66 - 44
(3) = 70
180 = 109 + 29 - (4)
(4) = 180 - 109 - 29
(4) = 72
The total interior angle is 180.
180 = 69 + 43 + (1)
(1) = 180 - 69 - 43
(1) = 68
180 = 112 + 41 + (2)
(2) = 180 - 112 - 41
(2) = 27
180 = 66 + 44 + (3)
(3) = 180 - 66 - 44
(3) = 70
180 = 109 + 29 - (4)
(4) = 180 - 109 - 29
(4) = 72