Answer :
Final answer:
The side length of a square equals the square root of its area. The square root of 38, which is the area of the poster, is approximately 6.1644. When rounding it to the nearest tenth, we get 6.2 inches.
Explanation:
The area of a square is found with the formula Area = side length × side length. So, if you want to find the side length from the area, you can rearrange this formula and get side length = sqrt(Area). Therefore we need to take the square root of 38 square inches to find the length of one side of the poster. The square root of 38 is approximately 6.1644. When we round it to the nearest tenth, we get 6.2 inches. So the answer is option A) 6.2 inches.
Learn more about Square root here:
https://brainly.com/question/1540542
#SPJ11
