Question

In the coordinate plane, three vertices of trapezoid STUV are S(0, 0), T(a, c), and V(d, 0). If point U is halfway between points S and V, what are the coordinates of point U?

Answer 1

first we find the distance between S and V
do you know the distance formula @Erion ?

Answer 2

\[\huge~\rm~\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\]