Mei Ling places her protractor on her geometry homework so that one arm of the angle lines up with the 0° mark on the inner scale. The other arm points to the 135° mark on the inner scale. Find the size of the angle in degrees.
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Worked Solution
Step 1: Identify which scale to use. The first arm lines up with 0° on the INNER scale, so we read the inner scale.\n
Step 2: Find where the second arm crosses the inner scale: it points to 135°.\n
Step 3: The angle measures 135°.
Answer: 135°
Correct answer: 135°
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