Agarden sculpture is in the shape of a square pyramid. its dimensions are shown in the net.

what is the surface area of the garden sculpture, including the base?

First, find the area of all figures that make up the net. The formula for the area of a triangle is 1/2bh, and there are four triangles. Therefore, 4(1/2)(10ft)(12ft)=240ft^2. This is the area of the outer four triangles of the pyramid. You then add this to the area of the square in the middle (s^2)=(10^2)=100ft^2, so it would be 100ft^2+240ft^2=340ft^2.