The clock on the wall of the P4 classroom at Tampines Primary shows exactly 4 o'clock. Find the size of the smaller angle between the hour hand and the minute hand at this time.
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Worked Solution
Step 1: A full clock face is 360°, divided into 12 equal hour-spaces. So each hour-space = 360° ÷ 12 = 30°.\n
Step 2: At 4:00, the minute hand points to 12 and the hour hand points to 4.\n
Step 3: Count the hour-spaces between them: 12 → 1 → 2 → 3 → 4 = 4 hour-spaces.\n
Step 4: Total angle = 4 × 30° = 120°.
Answer: 120°
Correct answer: 120°
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