Question

Please Help me Math problem:
Shelly sews a blanket that has an area of 170 square feet. It has 20 square blocks. each the same size. What is the approximate length of each side of a block?

a. 1
b. 2
c. 3
d. 4

Answer 1

remember that the area of a square is
\[A = s^2\]
where s is the length of 11 side
let 'x' be the length of the side of the small square blocks
\[170 = 20s^2\]
\[s^2 = 8.5\]
\[s \approx 2.915ft\]

Answer 2

So, the answer is B right? I figure it is a 2, but with extra numbers after.