What are the relationships of the sides, the angles,
and the diagonals of a parallelogram?

i'm sure goog can you get that answer

point a is the center of the circle that passes through points e, f, and g and the center of the circle that passes through points x, y, and z.

yes

step-by-step explanation:

they have to be opposite and reciprocal of eachother.

a_n = a_1 + (n - 1)d

the first term is 6.

the common difference d = ?

when you find d, replace n with 7 and d with the common difference to find your answer.