Question 1: Perimeter of base
- Definition of Perimeter: is the of the side lengths
⇒ Perimeter = 10 + 10 + 10 + 10 = 40 ft
Question 2: Find the slant height
- Definition of Slant Height: is the distance measured along a lateral face from the base to the center along the "center" of the face
To understand the slant height, look at the diagram I attached
Slant height: 13 ft
Question 3: Find the Lateral Area
- Definition of Lateral Area: Area of the non-base faces only
⇒ Lateral Area = 4 * (Area of Triangle)
=

= 260 ft^2
Question 4: Area of Base
Area of Base = 10 * 10 = 100ft^2
Question 5: Surface Area
- Definition of Surface Area: sum of the areas of surfaces of the figure
Surface Area = Area of Base + Lateral Area
= 100 + 260 = 360 ft^2
Hope that helps!