Article: Heat your oven to about 400 °F (204 °C). Put a pan containing the plastic in the oven and heat it until it is completely melted.  Parental supervision is suggested Make sure the plastic is in a pan large enough to support the melted goop. Allow the plastic to cool enough that it is still pliable. Do not let it harden. Carefully shape the plastic into sunglasses with eye-holes. This allows you to fit the accessory to your head quite well. Cut off the earpieces in a shape like this. _/\_  Then, drill small holes in the ends of the shapes /\ and \/. Finally, screw on the earpieces to the main plastic part of the sunglasses. Cut out the acetate sheets to the size of each lens with a little extra around the edges. Then glue the acetate sheets to the plastic mold. If the plastic is still pliable, feel free to insert the acetate inside the plastic.
Question: What is a summary of what this article is about?
Melt some plastic. Let the plastic cool. Mold  your sunglasses. Make the earpieces. Make the lenses.
Article: If you’re exfoliating your brows to help grow them out, it’s important to do it regularly. Use a scrub or toothbrush on your brows every night for 2 to 4 weeks. That will help improve circulation in the area to promote hair growth. If you find that your skin is too sensitive for daily exfoliation, try scrubbing your brows every other night or every couple of nights. Signs that your skin may be too sensitive include increased dryness and redness. Right after you exfoliate your brows, massage a brow growth serum over the area. These products contains peptides, while help promote growth at the hair follicle. In most cases, you should apply the serum daily, but consult the instructions on your product for proper usage. It can take up to 6 weeks to see results from a brow growth serum. Be sure to apply yours regularly to get the results that you want. While you’re in the process of growing your brows, you’ll likely go through an awkward phase with stray hairs or hairs that are too long. Resist the urge to pluck your brows, though. Instead, use a brow gel to carefully groom your brows into place and keep them there all day so they look neat and tidy. You can find clear and tinted brow gel formulas. The clear gel is a good option if you don’t have many gaps in your brows. However, the tinted gel may be a better choice if you need to fill in holes in your brows because it can save the step of using a pencil, powder, or pomade first. When you finally start to see some growth in your brows, you can wind up undoing all of the work you’ve done if you pick up a pair of tweezers and try to shape them yourself. Instead, visit a professional brow specialist to have your brows shaped exactly as you want them to ensure that they stay full and lush. If you don’t like the idea of having to go to a brow specialist every few months to get your brows shaped, don’t worry. Once you’ve had them shaped professionally, you can use the specialist’s work as a guide and tweeze away the stray hairs yourself.
Question: What is a summary of what this article is about?
Exfoliate your brows nightly. Apply a brow serum after exfoliating. Tame unruly brow hairs with gel. Have your brows professionally shaped.
Article: For a square of side length S, the perimeter is simply four times the side length: P=4s. Depending on the assignment, you may need to measure the side with a ruler, or look at other information on the page to determine the side length.  Here are some examples of perimeter calculations:  If your square has a side length of 4, then P = 4 * 4, or 16. If your square has a side length of 6, its P = 4 * 6, or 24.
Question: What is a summary of what this article is about?
Recall the formula for the perimeter of a square. Determine the length of one side, and multiply it by 4 to find the perimeter.