Kellogg Eye Center Vitreous Degeneration 1 ! Vitreous Degeneration This material will help you understand vitreous degeneration and how it is treated. What is vitreous degeneration? Vitreous is the gel-like substance that fills the inside of the eye behind the lens (see image on the right). Before you were born, it helped maintain the shape of the eye and nourish the eye as it developed.
The formula used to calculate surface area for the classic square pyramid is: SA = [2 * b * h] + b^2. 1  SA and l represent the same values as before. 2  The abbreviation b represents the base length of the pyramid. 3  Note that [2 * b * h] is used to calculate the lateral area of the square pyramid.
Case 1: Find the surface area and volume of a pentagonal prism with the given apothem length 2, side 3 and height 4. Find the area of the base. Area of the base(A) = Â½ * a * 5 * s = 0.5 * 2 * 5 * 3 = 15. Step 2: Find the perimeter of the base. Perimeter of the base(P) = 5s = 5 * 3 = 15. Step 3: Find the surface area of prism. Surface Area of Prism = 5as + Ph = (5 * 2 * 3) + (15 * 4) = 30 + 60 = 90. Step 4: Find the volume of prism. Volume of Prism = Ah = 15 * 4 = 60. The above example will clearly illustrates how to calculate the Volume, Surface Area, Perimeter of a Pentagonal Prism manually.