Question

draw an 85° angle using the ruler and protractor.

Explanation:

Step1: Draw a ray

Use the ruler to draw a ray \( OA \). The endpoint \( O \) will be the vertex of the angle.

Step2: Align the protractor

Place the center of the protractor at point \( O \), and align the baseline of the protractor with ray \( OA \).

Step3: Mark the \( 85^{\circ} \) point

Locate the \( 85^{\circ} \) mark on the protractor (make sure to use the correct scale - inner or outer, depending on the direction of the ray). Mark a point \( B \) at the \( 85^{\circ} \) mark.

Step4: Draw the second ray

Remove the protractor. Use the ruler to draw a ray \( OB \) from the vertex \( O \) through the marked point \( B \).

Answer:

An angle \( \angle AOB = 85^{\circ} \) is drawn.