Samacheer Kalvi Class 5 Maths Solutions Term 2 Chapter 3 Patterns Exercise 3.2

Samacheer Kalvi 5th Maths Guide Term 2 Chapter 3 Patterns Ex 3.2

Question 1. Mention the time in the clock when the angle is
(i) 180°
(ii) 90°
(iii) 60°
Answer:
(i) 180°: This angle forms a straight line. On a clock, this happens when the hands are directly opposite each other, like at 6:00.

(ii) 90°: This is a right angle. On a clock, this happens when the hands are three hours apart, like at 3:00.

(iii) 60°: This angle is formed when the hands are two hours apart. For example, at 2:00, the hour hand is at 2 and the minute hand is at 12, making a 60-degree angle. Each hour mark on a clock represents 30 degrees.

In simple words: Look at the clock. If the hands make a straight line, it's 180°. If they make an 'L' shape, it's 90°. If they are two numbers apart, it's 60°.

🎯 Exam Tip: Remember that each hour mark on a clock represents an angle of 30° from the previous one, which helps in calculating angles quickly.

Question 2. Find the angle made by the hands of the clock at the given time.
(i) (Image of clock showing 11:00)
(ii) (Image of clock showing 9:00)
(iii) (Image of clock showing 6:00)
(iv) (Image of clock showing 6:10)
(v) (Image of clock showing 6:45)
(vi) (Image of clock showing 6:30)
Answer:
(i) At 11:00, the hour hand is on 11 and the minute hand is on 12. The angle between them is 30°. Each hour space is 30 degrees, so from 11 to 12 is one space.