Liam is constructing a square in which two of its vertices are points A and B. He has already used his straightedge and compass to construct the lines and arcs shown. What should Liam do for his next step? Use the straightedge to draw a horizontal line that contains point E. Place the point of the compass on point B and draw an arc that intersects BE¯¯¯¯¯ , using ​ AB ​ as the width for the opening of the compass. Place the point of the compass on point A and draw any arc above it. Use a straightedge to draw AE¯¯¯¯¯ .