Jamal places his protractor so that ray OA aligns with the 0° mark on the left side of the outer scale. He wants to draw a 48° angle but accidentally reads the inner scale and marks the point where the inner scale shows 48°. What angle has Jamal actually drawn?
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Worked Solution
Step 1: Ray OA is aligned with the outer scale's 0° (left side).
Step 2: At any point on the protractor, the two scale readings sum to 180°.
Step 3: Inner scale reads 48° → outer scale reads 180° − 48° = 132° at the same point.
Step 4: Jamal marked the inner scale 48° position, which corresponds to an outer scale angle of 132°.
Answer: Jamal drew 132°.
Correct answer: 132°
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