Abcde ~ fghij. figure 2 is a dilation of figure 1, and the scale factor is 0.6. given that fg = 12 cm, find ab.

Use stokes' theorem to evaluate c f · dr where c is oriented counterclockwise as viewed from above. f(x, y, z) = xyi + 5zj + 7yk, c is the curve of intersection of the plane x + z = 8 and the cylinder x2 + y2 = 81.