A rectangular pool at Andy’s gym measures 25 meters by 50 meters. How many meters would Andy need to swim in order to swim diagonally across the pool?

Hi my sisters and brothers can tell me the answer because i don’t understand the question

Asurvey of 45 teens found that they spent an average of 25.6 hours per week in front of a screen (television, computer, tablet, phone, based on the survey’s sample mean, which value could be the population mean? 2.3 hours 27.4 hours 75.3 hours 41.5 hours

The measure of an angle is 117°. what is the measure of a supplementary angle?