How much fencing is needed to enclose a field that is 300 meters by 600 meters?

In trapezoid efgh, m∠hef=(4x2+16)∘ and m∠gfe=(5x2+12)∘. find the value of x so that efgh is isosceles. i'm desperate.

Find the slope of the line below . enter your answer as a fraction or decimal. use a slash mark ( / ) as the fraction bar if necessary

Fredrick designed an experiment in which he spun a spinner 20 times and recorded the results of each spin