What is a protractor used for? to create straight lines to create curved lines to determine an exact shape to draw or measure angles

## Step 1<br />A protractor is a mathematical tool used to measure angles. It is a circular or semi-circular tool with degrees marked on it, which allows us to measure the size of an angle.<br />## Step 2<br />The protractor is not used to create straight lines or curved lines. These are typically done with a ruler or a compass.<br />## Step 3<br />The protractor is also not used to determine an exact shape. This is usually done with geometric shapes and their properties.<br />## Step 4<br />Therefore, the correct answer is that a protractor is used to draw or measure angles.