Item 3
Denise is constructing a square in which two of its vertices are points M and N. She has already used her straightedge and compass to construct the lines and arcs shown.

What should Denise do for her next step?

Use a straightedge to draw a horizontal line that contains point O.

Use a straightedge to draw MO¯¯¯¯¯¯.

Place the point of the compass on point N and draw an arc that intersects NO¯¯¯¯¯¯, using MN as the width for the opening of the compass.

Place the point of the compass on point M and draw any arc above it.
The figure shows horizontal line M N with point N to the right of point M. Congruent arcs pass through line M N. The arcs are equidistant from point N with one on its left and one on its right. Two intersecting arcs are directly above point N. Vertical ray N O passes through the two arcs point of intersection with point O being above this intersection point.

Question

Item 3
Denise is constructing a square in which two of its vertices are points M and N. She has already used her straightedge and compass to construct the lines and arcs shown.

What should Denise do for her next step?

Use a straightedge to draw a horizontal line that contains point O.

Use a straightedge to draw MO¯¯¯¯¯¯.

Place the point of the compass on point N and draw an arc that intersects NO¯¯¯¯¯¯, using MN as the width for the opening of the compass.

Place the point of the compass on point M and draw any arc above it.
The figure shows horizontal line M N with point N to the right of point M. Congruent arcs pass through line M N. The arcs are equidistant from point N with one on its left and one on its right. Two intersecting arcs are directly above point N. Vertical ray N O passes through the two arcs point of intersection with point O being above this intersection point.