s = 1800°
To find the sum of interior angles in a polygon you can use the following equation

If this helped you a Brainliest would be appreciated!
Answer:
answers and work are shown below:)
Step-by-step explanation:
31.5% of 473 can be calculated as follows
(31.5/100) * 473
= 14899.5/100
= 148.99
hope it helped