Final answer:
To construct a convex quadrilateral with intersecting diagonals in Euclidean Geometry, draw two intersecting lines for the diagonals and connect their endpoints with two additional lines to form the sides of the quadrilateral.
Step-by-step explanation:
In Euclidean Geometry, a convex quadrilateral can be constructed with intersecting diagonals. To construct this quadrilateral, start by drawing two intersecting lines to create two diagonals. Then, draw two more lines connecting the endpoints of the diagonals, forming the sides of the quadrilateral. This resulting shape is a convex quadrilateral.