Answer:
1. ? = 360 - 115- 103-53
= 89°
2. find the sum of interior angles =(n-2)180 =( 5-2)180
=3(180) = 540°
find the missing angle x1 = 540 -112- 103-103- x2
angle ?1 = 222-x2
angle ?2 = 222-x1
3. ? = 360-51-90-90 = 129°
4. find the sum of interior angles =(n-2)180= (5-2)180
=3(180) = 540°
find ? = 540 -108-124-107-98 = 103°
5. find the sum of interior angles= (n-2)180 = (6-2)180
= 4(180) = 720°
find ? = 720 - 119-113-118-104-137 = 129°
