Table of Contents

Toggle**NCERT Solutions for class 6, Maths chapter 5** has basic learning concepts of various shapes. This class 6 maths exercise 5.2 is about knowledge of different types of angles explained with clock and directions. The questions in this exercise named as Understanding Elementary Shapes, Exercise 5.2 given below.

## Understanding Elementary Shapes, Exercise 5.2

**Q.1. What fraction of a clockwise revolution does the hour hand of a clock turn through, when it goes from**

**(a) 3 to 9 (b) 4 to 7 (c) 7 to 10**

**(d) 12 to 9 (e) 1 to 10 (f) 6 to 3**

**Ans: **In clock, one complete clockwise revolution done by hour hand = 360^{0}.

**Q.2. Where will the hand of a clock stop if it**

**(a) starts at 12 and makes ½ of a revolution, clockwise?**

**(b) starts at 2 and makes ½ of a revolution, clockwise?**

**(c) starts at 5 and makes ¼ of a revolution, clockwise?**

**(d) starts at 5 and makes ¾ of a revolution, clockwise?**

**Ans: O**ne complete clockwise revolution = 360^{0}

**Q.3. Which direction will you face if you start facing**

**(a) east and make ½ of a revolution clockwise?**

**(b) east and make ½ of a revolution clockwise?**

**(c) west and make ¾ of a revolution anti-clockwise?**

**(d) south and make one full revolution?**

**(Should we specify clockwise or anti-clockwise for this last question? Why not?)**

**Ans: **Revolving one complete round in clockwise or in anti – clockwise direction = 360^{0}

**Q.4. What part of a revolution have you turned through if you stand facing**

**(a) east and turn clockwise to face north?**

**(b) south and turn clockwise to face east?**

**(c) west and turn clockwise to face east?**

**Ans: **one complete revolution either in clockwise or in anti-clockwise is = 360^{0}

**Q.5. Find the number of right angles turned through by the hour hand of a clock when it goes from**

**(a) 3 to 6 (b) 2 to 8 (c) 5 to 11**

**(d) 10 to 1 (e) 12 to 9 (f) 12 to 6**

**Ans: one complete revolution by hour hand = 360 ^{0} or 4 right angles.**

**Q.6. How many right ****angles do you make if you start facing**

**(a) south and turn clockwise to west?**

**(b) north and turn anti-clockwise to east?**

**(c) west and turn to west?**

**(d) south and turn to north?**

**Ans:** Revolving one complete round in clockwise or in anti- clockwise direction = 360^{0} or 4 right angles.

**Q.7. Where will the hour hand of a clock ****stop if it starts**

**(a) from 6 and turns through 1 right angle?**

**(b) from 8 and turns through 2 right angles?**

**(c) from 10 and turns through 3 right angles?**

**(d) from 7 and turns through 2 straight angles?**

**Ans: **one complete revolution by hour hand = 360^{0} or 4 right angles.

## Chapter 5 : Understanding Elementary Shapes

**Understanding Elementary Shapes, Exercise 5.1**

**Understanding Elementary Shapes, Exercise 5.2**

**Understanding Elementary Shapes, Exercise 5.3**

**Understanding Elementary Shapes, Exercise 5.4**

**Understanding Elementary Shapes, Exercise 5.5**

**Understanding Elementary Shapes, Exercise 5.6**

**Understanding Elementary Shapes, Exercise 5.7**