Nancy is completing some homework on number lines. The questions in her homework are about marking the position of fractions and decimal numbers on a number line. She needs to mark these points correctly and accurately. Part A

Nancy has to mark and on this number line. How many spaces does she need between the integers 1 and 2, and between -1 and -2, to show and on the number line?

option: d is correct

step-by-step explanation:

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