Problem: Prove that the quadrilateral defined by the points F(6,4), R(1,3), O(3,2), G(−2,1) is a parallelogram. (Please explain!)

you can draw it on a graph like the one i did

then name the sides

and then measure them and make sure that parallel sides are equal

a must be = c and have same slope

and

b must be = d and have same slope

after doing that, you will know that this is a correct parallelogram

21.4 i did it already for s1

step-by-step explanation:

cut 138 centimeters off

step-by-step explanation:

250-112 = 138