Find the surface area and volume of the 3D shape given. Round the answer to the nearest tenth. (Use $\mathrm{\pi }=3.14$)

     

Find the surface area and volume of the 3D shape given. Round the answer to the nearest tenth. (Use $\mathrm{\pi }=3.14$)

Find the surface area and volume of the 3D shape given. Round the answer to the nearest tenth. (Use $\mathrm{\pi }=3.14$)

Find the surface area and volume of the 3D shape given. Round the answer to the nearest tenth. (Use $\mathrm{\pi }=3.14$)

Find the surface area and volume of the 3D shape given. Round the answer to the nearest tenth. (Use $\mathrm{\pi }=3.14$)

The Watercone is a product that was invented to help solve the problem of poor-quality water. The circular tray at the bottom is filled with salty water and the Watercone is left in the sun. As the water evaporates it rises. Salt­ free water condenses on the side of the cone and trickles into the rim of the cone, where it is collected.
 

Find the curved surface area inside the cone that could be covered in drops at any one time, knowing that the cone has a base diameter of $80 \mathrm{cm}$ and a height of $30 \mathrm{cm}$. (Use, $\mathrm{\pi }=3.14$)

Find the amount of material needed to make piping bag as shown. Round the answer to the nearest tenth. (Use, $\mathrm{\pi }=3.14$)

Find the amount of material needed to make piping bag as shown. Round the answer to the nearest tenth. (Use, $\mathrm{\pi }=3.14$)

Find the amount of material needed to make piping bag as shown. Round the answer to the nearest tenth. (Use, $\mathrm{\pi }=3.14$)