Step-by-step explanation:
sum of all the angles in a triangle is equal to 180°
82 + 70 + (2x + 4) = 180
152 + 2x + 4 = 180
156 + 2x = 180
2x = 180 - 156
2x = 24
x = 12
Answer:
1. 44 GB
2. 12 ft
3a. 49
3b. -155
3c. 6
3d. -53
c = 10 feet