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Angle and Time Video Lecture | Mathematics for Class 5: NCERT

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FAQs on Angle and Time Video Lecture - Mathematics for Class 5: NCERT

1. What are angles and how are they measured?
Ans. Angles are formed when two lines meet at a point called the vertex. They are measured in degrees (°) using a protractor. A full circle is 360°, a right angle is 90°, and a straight angle is 180°.
2. What are the different types of angles?
Ans. There are four main types of angles: acute angles (less than 90°), right angles (exactly 90°), obtuse angles (greater than 90° but less than 180°), and straight angles (exactly 180°).
3. How do we tell time on an analog clock?
Ans. To tell time on an analog clock, observe the position of the hour hand and the minute hand. The hour hand points to the current hour, while the minute hand shows the minutes. For example, if the hour hand is on 3 and the minute hand is on 12, it is 3:00.
4. What is the difference between an analog clock and a digital clock?
Ans. An analog clock displays time using hands on a circular face, while a digital clock shows time in numerical form, usually with hours and minutes displayed together. Analog clocks are often considered more traditional, while digital clocks are easier to read quickly.
5. How can we find the angle between the hour and minute hand on a clock?
Ans. To find the angle between the hour and minute hand, first calculate the positions of each hand. The minute hand moves 6° for each minute (360°/60 minutes). The hour hand moves 30° for each hour (360°/12 hours). Subtract the smaller angle from the larger angle to find the angle between them.
28 videos|169 docs|41 tests
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