### Home > APCALC > Chapter 9 > Lesson 9.3.1 > Problem9-81

9-81.

Multiple Choice: The arc length of the curve $y=2\sin\sqrt{x}$ over the interval $1 ≤ x ≤ π^2$ is closest to:

1. $1.4$

1. $2.3$

1. $8.9$

1. $9.2$

1. $9.6$

$\int_1^{\pi^2}\sqrt{1+(y^\prime)^2}dx$