16. You are given a piece of sheet metal that is twice as long as it is wide and has an area of 800 m². Find the dimensions of the rectangular box that would
contain a maximum volume if it were constructed from this piece of metal by
cutting out squares of equal area at all four corners and folding up the sides.
The box will not have a lid. Give your answer correct to one decimal place.​

If i have one apple and give you the apple, how many apples do i have?

The figure shows triangle def and line segment bc, which is parallel to ef: triangle def has a point b on side de and point c on side df. the line bc is parallel to the line ef. part a: is triangle def similar to triangle dbc? explain using what you know about triangle similarity. part b: which line segment on triangle dbc corresponds to line segment ef? explain your answer. part c: which angle on triangle dbc corresponds to angle f? explain your answer. asap

What are the triple angle formulas? is it related to double angle identities?