6. A rectangle has vertices located at (-4,4), (2, 4), (2, -4) and (-4,-4). What is the length of a diagonal of the rectangle?

its d. the first coordintaes are 10,32

step-by-step explanation:

answer: both chords and diameters have two endpoints on a circle. diameters must intersect the center of a circle.

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hello from mrbilldoesmath!

answer:   x^2 + y^2 = 1024

discussion:

the equation of a circle with center (h,k) and radius "r" is

(x-h)^2 + (y-k)^2 = r^2.

in our case

(x-0)^2 + (y-0) ^2 = 32^2 = 1024

you,

mrb