The distance between goalposts, bc, is three times the distance from the top of the goalpost to the ground. if the perimeter of abcd is 21 1/3 yards, what is the length of bc?

the dimensions are:

step-by-step explanation:

we want to find the dimensions of a rectangular box with volume of

we factor to obtain;

we rewrite the rightmost factor to obtain;

recall that:

we apply difference of two squares formula to obtain;

hence the dimensions are

s

step-by-step explanation: