Question

lucia constructed $overline{cd}$ as a copy of $overline{ab}$ using a straightedge and compass. what can lucia say about $ab$ and $cd$? (4 points)
$ab = \frac{1}{2}cd$
$ab = 2cd$
$ab=\frac{1}{3}cd$
$ab = cd$

Explanation:

Step1: Recall construction property

When constructing a line - segment $CD$ as a copy of line - segment $AB$ using a straightedge and compass, the lengths of the two line - segments are equal.

Answer:

$AB = CD$