Answer:
Look below
Step-by-step explanation:
A. This is a 5-sided figure (pentagon) therefore the interior angles would add up to 540 degrees. We can use this to set up an equation:
x+100+112+113+117=540
Add like terms
x+442=540
Subtract 442 from both sides
x=98
B. This is a 6-sided figure (hexagon) therefore the interior angles would add up to 720 degrees. We can use this to set up an equation:
x+90+90+130+140+150=720
Add like terms
x+600=720
Subtract 600 from both sides
x=120
