1. The problem asks to identify the correct position of a protractor to measure the given angle accurately. 2. The correct method to measure an angle with a protractor is: - Place the center hole of the protractor exactly at the vertex of the angle. - Align the baseline (zero line) of the protractor with one arm of the angle. - Read the measurement where the other arm crosses the protractor scale. 3. Option A shows the protractor centered at the vertex, baseline aligned with one arm, measuring about 50 degrees, which follows the correct procedure. 4. Option B has the baseline aligned horizontally but not with the angle arm, leading to incorrect measurement. 5. Options C, D, and E also show correct center placement and baseline alignment but measure different angles (25, 45, and 35 degrees respectively). 6. Since the problem states "the angle shown" without specifying the exact measure, the correct position is the one that follows the proper placement rules, which is shown in options A, C, D, and E. 7. However, the question asks which option shows the correct position to measure the angle shown, implying the angle in the figure is about 50 degrees. 8. Therefore, the correct answer is Option A. Final answer: Option A shows the correct position of the protractor to measure the angle shown.