Im losing my sanity over this question please can someone help me lol

There are 5 sides in this shape.

(5-2)(180) = 540. There is 540 degrees in this shape.

111 + c + (c + 10) + 120 + 91 = 540

111 + 2c + 10 + 120 + 91 = 540

2c = 208

c = 104

104

c = 104°

Step-by-step explanation:

This shape is a pentagon since it has 5 sides. The angle inside the pentagon add up to 540°. Thus, create an equation to find the unknown value of c.

111° + c + 120° + 91° + c + 10° = 540

Add the numbers

332° + c + c = 540°

Combine like terms

332° + 2c = 540°

Rearrange and subtract 332 from both sides.

2c = 208°

Divide 2 by both sides

c = 104°

Check:

104 + 120 + 91 + 104 + 10 + 111 = 540°

hope this helps and is right!! p.s. i really need brainliest :)