In this task the focus is on physical knowledge about the world. Given the provided goal task in the input, describe a process that would lead to the asked outcome. This process often involves physical motions with objects, such as moving them, arranging them in a certain way, mixing them, shaking them, etc. 

To store cake to keep it out of the way.
A closed microwave will protect your cake and help keep it fresh, and prevent it from taking up space on your counter top.

aluminum foil
can be used  to start a fire 

how to find the perimeter of a trapezoid

Perimeter = add lengths of all sides    P = a + b1 + b2 + c