Construct line segments AB and BC as shown below.

**A** and line
segment **BC**, construct "parallel line".

**C** and line
segment **AB**, construct "parallel line."

**D**.

**A** and point
**D** and construct "segment", choose points **D**
and **C** and construct "segment". Hide parallel
lines.

**AB = CD =
BC = AD = **

= ** **=

Name the two sets of opposite
sides of the parallelogram.

**,
**and

What can you conclude about the
measurements of the opposite sides of the parallelogram?

**,
**and

What can you conclude about the
measurements of the opposite angles of the parallelogram?

**,
**and

What can you conclude about the
measurements of the consecutive angles of the parallelogram?

Additional Construction

**A **and **C**,
construct "segment".

**B** and **D**,
construct "segment".

**AC**
and **BD**, and construct "point at intersection",
label as point **X**.

(Choose each endpoint to measure "distance".)

**A** to **X**
=

**X** to **C**
=

**B** to **X**
=

**X** to **D**
=

Define **Parallelogram**.

List the five characteristics
of a **Parallelogram
**(use the text
if needed)**.**

1.

2.

3.

4.

5.

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