Question

1 Work out the sizes of the unknown angles. a 66° 63 50° 1090

Answer 1

Answer:

110 degrees,

Step-by-step explanation:

The unmarked external angle = 180-109 = 71 degrees.

x =  360 - 63 - 66 - 50 - 71 = 110.

Answer 2

Answer:

x = 110°

Step-by-step explanation:

the sum of the exterior angles of a polygon = 360°

the exterior angle to 109° is

180° - 109° = 71° ( adjacent angles on a straight line )

then summing the exterior angles and equating to 360°

63° + 66° + 50° + x + 71° = 360° , that is

250° + x = 360° ( subtract 250° from both sides )

x = 110°