Question

Which questions can be answered by finding the surface area? Check all that apply.How much wrapping paper is needed to wrap a box?What is the minimum amount of paint needed to cover a cardboard box?How much water is needed to fill a rectangular bathtub?How much cereal will fit in a box?How much packing foam is needed to fill a box?

Answer 1

• How much wrapping paper is needed to wrap a box?

,

• What is the minimum amount of paint needed to cover a cardboard box?

Step-by-step explanation

The surface area is the total area of the outside surface of an object. When we want to wrap a present, and we don't know if we have enough wrapping paper, we can measure the box and find its surface area to see if the area of wrapping paper we have is enough.

Also, if we want to paint the surface of an object, we can measure the amount of paint depending on how much area it must cover, so we have to find the surface area of the object too.

Note that the last three questions ask about filling an object. In these cases, we need to know the volume of the objects instead of their surface areas.

Hence, the first two questions can be answered by finding the surface area.