1. Calculate the surface area of the gazebo roof if the base is a square with a side length of 3m and the roof height is 1.6m! 2. Calculate the surface area of the chapel roof if the length of the base edge is 2.5 m and the roof edge is 3.2 m! 3. Calculate the surface area of the roof of the church bell tower, if the base is a square with a side length of 5 m and the height of the tower roof is 18 m! 4. Calculate the surface area of the building's roof tower, if it is based on a regular triangle with an edge length of 3 m and a side edge length of 8 m! 5. The base of the pyramid is a rectangle whose side lengths are 6 cm and 8 cm. All sides of the pyramid are 13 cm long. Calculate the height of the pyramid, draw a picture and describe the solution process in detail.