What is the area of a hexagon with a radius of 5 in?

The owner of the plant nursery where you were tells you to fill 350 ml bottles from a 30 l from a fertilizer

Find a parametrization for the curve「and determine the work done on a particle moving along γ in r3 through the force field f: r^3--r^3'where f(x, y,z) = (1,-x, z) and (a) im (γ) is the line segment from (0,0,0) to (1,2,1) (b) im (γ) is the polygonal curve with successive vertices (1,0,0), (0,1,1), and (2,2,2) (c) im (γ) is the unit circle in the plane z = 1 with center (0,0,1) beginning and ending at (1,0,1), and starting towards (0,1,1)

In the triangle rst, rs = 65 and st = 60. which equation could be used to find the value of angle s?