Question

What is the approximate length of the lateral surface for the cylinder shown here in net form?

A net of a cylinder is shown. It consists of a rectangle and two circles, one above and one below the rectangle. The width of the rectangle is twelve inches. The length of the rectangle is unknown. The diameter of the circle is ten inches.
thirty-one point four inches sixty-two point eight inches seventy-eight point five inches three hundred seventy-six point eight inches