I am a quadrilateral with two pairs of opposite sides parallel and congruent. my only opposite angles are congruent. the sum of my two consecutive angles on same side is 180°. I am?

a parallelogram

Step-by-step explanation:

could also be more specific such as a rectangle or even more specific as a square.

the statement "the sum of my two consecutive angles on same side is 180°" is redundant as we are already told we have two pairs of parallel and congruent sides

256π units²   (answer b)

step-by-step explanation:

the formula for the surface area of a sphere of radius r

is             a = 4πr²

and so, if r = 8 units, then the surface area is:

a = 4π(8 units)² = 256π units²   (answer b)

choice b is correct

step-by-step explanation:

we have been given the following system of linear inequalities;

we are required to graphically determine the solution to these system of inequalities. using a graphing tool, the solution is as shown in the attachment below;