Memorizing the formulas for the surface area and volume of cones can be tough for many students. Let's break it down simply.

Here are the formulas you need to know:

• Surface Area (SA): (SA = \pi r (r + l))
  Here, (r) is the radius, and (l) is the slant height.

• Volume (V): (V = \frac{1}{3} \pi r^2 h)
  In this formula, (h) is the height of the cone.

Now, let’s look at some ways to help you remember these formulas:

1. Repetition:
   Write the formulas down regularly. The more you write them, the easier it will be to remember.

2. Visualization:
   Draw a cone and label its parts such as the radius, height, and slant height. This can help you connect the shapes to the formulas.

3. Mnemonics:
   Make up fun phrases or easy-to-remember sayings. For example, you might turn "SA = pi r (r + l)" into a catchy rhyme.

4. Practice:
   Work on different problems that use these formulas. Doing this will help you understand them better.

Memorization can be hard, but with some consistent practice and these fun techniques, it can become much easier!