1. In a parallelogram ABCD, three vertices are A(-3,1), B (2,4) and C(3,1). (a) Find the midpoint of the diagonal AC. (b) Find the coordinates of D. (c)the length of the diagonal AC (d) the perimeter of ABCD. 2. Find the area of A PQR where P (0,7), Q (5,-5) and R (10,7).​​

answer: h

step-by-step explanation:

the radius is 2 times the diameter.

step-by-step explanation:

step-by-step explanation:

given that ab is divided into equal parts as

ac, cd, de, ef, fg, gh, hi, ib.

from this we find that f is the midpoint of ab.

so using mid point formula we find

f = (3,7)

similarly considering fb, we get

h = mid point of fb = ((6,6) and g, mid point of fh is

g = (9/2, 13/2)

i is mid point of hb

so i =(15/2,11/2)

answer: 1+1

step-by-step explanation: 1+1 is at least 2