Tall fescue (Lolium arundinaceum) seeds germinate in seven to 12 days. Hard fescue (Festuca longifolia) and red fescue (Festuca rubra) seeds take seven to 14 days. Plant 7 to 9 pounds of annual ryegrass seed or 6 to 9 pounds of perennial ryegrass per 1,000 square feet in the fall.
More About Base Angle Theorem. 1  Base angles of an isosceles triangle are equal.  Converse of the base angle theorem is also true, i.e. if two angles of a triangle are congruent, the sides opposite to these angles are congruent.
Base Curve. The base curve, or BC, is the radius of the back of the contact lens, the part that sits on your eye. According to Laser Eye Surgery Review , the average measurement of a base curve is between 8.0 and 10.0. An example of a common base curve would be BC 8.7mm. Diameter. All contact lenses have a measurement called the diameter. This measurement is in millimeters and is the size of the lens. The August, 2005 issue of Contact Lens Spectrum notes that the average contact lens diameter is 14.0mm. Expiration Date