What is the area pls

Which of the following would be a good name for the function that takes the weight of a box and returns the energy needed to lift it?

How would you find the height of points on the circle? the topic is trigonometry.

Which option identifies how kevin should proceed in the following scenario? four years ago kevin designed an mp3 player for young children. now that technology has changed, he would like to update his design to ensure that it encompasses cutting-edge techniques. by creating a third-angle projection of his ideas by designing an isometric projection of his new ideas by referring to past designs and illustrations of his original model by conferring with engineers who have improved upon similar devices