a) the base is a square to find its area you can use the formula: [tex]a = {s}^{2} \\ [/tex] a being the area and s one of the sides
now just use s= 55ft [tex]a = {55}^{2} = 3025[/tex] The area of the base is 3025 ft^2
b) the volume of the pyramid is: [tex]v = \frac{b \times h}{3} [/tex] v being the volume, b the area of the base and h the height of the pyramid use b=3025 and h=460 [tex]v = \frac{3025\times 460}{3} = 463833.3[/tex] the volume of the pyramid is 463833.3 ft^3
