The measure of central angle XYZ is 1.25 radians. What is the area of the shaded sector? 10pi units2 20pi units2 40pi units2 80pi units2

answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq   and the angle ∠orq   are opposite, therefore:

then, can be used to d to calculate the measure of ∠opq

step-by-step explanation:

i think it will be zero as slope has a formula of difference between initial and final distance divided by itz time interval