Ibelieve he area is incorrect. so can somebody me to figure out the area and arc length. show your work. so i can understand : )

To find the area of a sector, you must use the formula: , so, since we know the degree measure, which is 80, and the radius, 1.3, we plug it into the formula and get: 1.17984257435

To find the arc length, you must use the formula: , then we plug in 80 as our arc degree and 1.3 as our radius, and we get: 1.81514242207

A)-4

Step-by-step explanation:

180=120+x+64

x=180-120-64

x=-4