sheet (n)

**Definition:** (mathematics) an unbounded two-dimensional shape

**Example:**
we will refer to the plane of the graph as the X-Y plane.
any line joining two points on a plane lies wholly on that plane.

**Definition:** (mathematics) an unbounded two-dimensional shape

**Example:**
we will refer to the plane of the graph as the X-Y plane.
any line joining two points on a plane lies wholly on that plane.

**Definition:** (mathematics) an unbounded two-dimensional shape

**Example:**
we will refer to the plane of the graph as the X-Y plane.
any line joining two points on a plane lies wholly on that plane.

sheet (n)

**Definition:** (mathematics) an unbounded two-dimensional shape

**Example:**
we will refer to the plane of the graph as the X-Y plane.
any line joining two points on a plane lies wholly on that plane.

**Definition:** (mathematics) an unbounded two-dimensional shape

**Example:**
we will refer to the plane of the graph as the X-Y plane.
any line joining two points on a plane lies wholly on that plane.

**Definition:** (mathematics) an unbounded two-dimensional shape

**Example:**
we will refer to the plane of the graph as the X-Y plane.
any line joining two points on a plane lies wholly on that plane.