Answer:
Part 7) [tex]O(0,0),S(0,h), T(b,h), W(b,0)[/tex]
Part 8) [tex]O(0,0),S(0,a), T(a,a), W(a,0)[/tex]
Part 9) [tex]S(-b/2,-b/2),T(-b/2,b/2),W(b/2,b/2),Z(b/2,-b/2)[/tex]
Part 10) [tex]Z(b,0), W(b+c,0),T(c,a),S(0,a)[/tex]
Part 11) [tex]W(r,0),T(0,t),S(-r,0),Z(0,-t)[/tex]
Part 12) [tex]S(-a,0),Z(a,0),W(b,c),T(-b,c)[/tex]
Step-by-step explanation:
Part 7) we know that
The point O is at origin
so its coordinates are [tex]O(0,0)[/tex]
Since the height of the rectangle is h, S and T are h units away from the x-axis
Since the base is b, T and W are b units away from the y-axis
thus the coordinates of the other vertices are
[tex]S(0,h), T(b,h), W(b,0)[/tex]
Part 8) we know that
The point O is at origin
so its coordinates are [tex]O(0,0)[/tex]
Since the height of the square is a, S and T are a units away from the x-axis
Since the base is also a, T and W are a units away from the y-axis
thus the coordinates of the other vertices are
[tex]S(0,a), T(a,a), W(a,0)[/tex]
Part 9) we know that
Since the square STWZ is centered at the origin and side length is b, S and T are b/2 units away from each axis
The same is true for the other vertices
so
[tex]S(-b/2,-b/2),T(-b/2,b/2),W(b/2,b/2),Z(b/2,-b/2)[/tex]
Part 10) we know that
Since the parallelogram has height a, S and T are a units away from the x-axis
The x-coordinate of T and W do not depend on a or b, so use a different variable c for T and W
Thus
[tex]Z(b,0), W(b+c,0),T(c,a),S(0,a)[/tex]
In this part another variable for c is acceptable
Part 11) we know that
Since the rhombus STWZ is centered at the origin, the diagonal be on the axes and the diagonals bisect each other, T and Z are t units away from the x-axis, and S and R are r units away from the y-axis
so
[tex]W(r,0),T(0,t),S(-r,0),Z(0,-t)[/tex]
Part 12) we know that
Since the the base of the isosceles trapezoid is centered at the origin, S and Z are a units away from the y-axis
The height is c , so T and W are c units away from the x-axis
The distance of T and W from the y-axis, do not depend on a or c, so another variable b is needed
Therefore
[tex]S(-a,0),Z(a,0),W(b,c),T(-b,c)[/tex]
In this part another variable for b is acceptable