The height of a trapezoid is 6 in. and its area is 72 in2. one base of the trapezoid is 6 inches longer than the other base. what are the lengths of the bases? complete the explanation of how you found your answer.

Let x in be the length of smaller base, then greater base has length x+6 in. The midline of trapezoid is

You can find the area of trapezoid using formula

Then

the smaller base has length x=9 in and the greater base has length x+6=9+6=15 in.

hello from mrbilldoesmath!

answer:

a(n) - a(n-1) -3

discussion:

this ones a bit interesting. given a(n) = 5 - 3n consider this:

a(n-1) = 5 - 3(n-1)

          = (5 - 3n) + 3             => but a(n) = 5 - 3n, the first term

          = a(n)   + 3                 => subtract 3 from both sides

a(n-1) -3 = a(n)  

or

a(n) - a(n-1) -3

you,

mrb

step-by-step explanation: