A rectangular horse pasture is bounded on one side by a stone wall and on the other three sides by a single wire strand of electric fence. Using 400 feet of wire, what is the largest area, in square feet, that can be enclosed

1. what is the measure of ∠abc? what is the measure of ∠abd?

This is different from the first one can someone me

At the olympic games, many events have several rounds of competition. one of these events is the men's 100-meter backstroke. the upper dot plot shows the times (in seconds) of the top 8 finishers in the final round of the 2012 olympics. the lower dot plot shows the times of the same 8 swimmers, but in the semifinal round. which pieces of information can be gathered from these dot plots? (remember that lower swim times are faster.) choose all answers that apply: a: the swimmers had faster times on average in the final round. b: the times in the final round vary noticeably more than the times in the semifinal round. c: none of the above.