Question

draw a 15° angle using the ruler and protractor.

Explanation:

Step1: Draw a ray

Use a ruler to draw a ray \( OA \), with \( O \) as the endpoint.

Step2: Align the protractor

Place the center of the protractor on point \( O \), and align the zero - degree scale line with ray \( OA \).

Step3: Mark the 15° point

Find the scale mark of \( 15^{\circ} \) on the protractor (usually the inner or outer scale, here we can use the inner scale for example), and mark a point \( B \) at this position.

Step4: Draw the second ray

Use a ruler to draw a ray \( OB \) from point \( O \) through point \( B \). Then \( \angle AOB = 15^{\circ} \) is the angle we want to draw.

Answer:

The angle \( \boldsymbol{15^{\circ}} \) is drawn by following the above steps (the specific drawing is based on the actual operation, and the key is to ensure the correct use of the protractor and ruler to determine the angle).