What is 2 / 16 equals to 18​

In the diagram below what is the approximate length of the minor arc ab

15 and 14.7 are 1 apart, so 15 – 14.7 must be 1.

Find the volume of the solid whose base is the region bounded by f(x), g(x) and the x-axis on the interval [0, 1], and whose cross-sections perpendicular to the y-axis are squares. your work must show the integral, but you may use your calculator to evaluate it. give 3 decimal places for your answe