Multiple choice

The hands of clock form an acute angle at 2 0' clock. What type of angle do they form at 4 0' clock?

  1. Acute

  2. Right

  3. Obtuse

  4. Straight
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

At 2 o'clock, the angle is 60 degrees (acute). At 4 o'clock, the hour hand is at 4 and the minute hand is at 12. The angle is 4 * 30 = 120 degrees, which is obtuse.

AI explanation

Using the clock angle formula, the angle is calculated as 30 times the hours minus 5.5 times the minutes. For 4 hours and 0 minutes, the calculation is 120 minus 0, giving an angle of 120 degrees. Since an angle between 90 and 180 degrees is classified as an obtuse angle, the hands form an obtuse angle.

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