This image is about finding the surface area of square pyramids. The surface area formula for a square pyramid is:

$\text{Surface Area} = \text{Base Area} + \frac{1}{2} \times \text{Perimeter} \times \text{Slant Height}$

Where:

• Base area = side × side
• Perimeter = 4 × side
• The slant height is the height of the triangular faces of the pyramid.

It looks like you've worked through several examples with different measurements and dimensions. Each pyramid has its base side and slant height to plug into the formula.

Would you like a detailed breakdown of one of the problems, or do you have a specific question about the calculations?

Here are some related questions:

1. What is the difference between slant height and actual height in a pyramid?
2. How do you find the slant height of a pyramid if it's not given?
3. How do you calculate the surface area of a pyramid with a rectangular base instead of a square base?
4. Can the surface area formula be applied to other types of pyramids, such as triangular pyramids?
5. How does the number of sides of the base affect the surface area of a pyramid?

Tip: Always double-check the slant height. If you need to calculate it, you can use the Pythagorean theorem if you know the perpendicular height and half the base length.