Ncert solutions

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1. NCERT Solutions - Mathematics, Class 6

CHAPTERS

1. Knowing Our Numbers

2. Whole Numbers

3. Playing With Numbers

4. Basic Geometrical Ideas

5. Understanding Elementary Shapes

6. Integers

7. Fractions

8. Decimals

9. Data Handling

10. Mensuration

11. Algebra

12. Ratio and Proportion

13. Symmetry

EXERCISES

1. Exercise 5.1

2. Exercise 5.2

3. Exercise 5.3

4. Exercise 5.4

5. Exercise 5.5

6. Exercise 5.6

7. Exercise 5.7

8. Exercise 5.8

9. Exercise 5.9

Q4) Measure the angles given below using the Protractor and write down the measure.

(a)

(b)

(c)

(d)

Q3) Write down the measures of

(a) some acute angles. (b) some obtuse angles.

(give at least two examples of each).

Q2) 2. Say True or False :

(a) The measure of an acute angle < 90°.

(b) The measure of an obtuse angle < 90°.

(c) The measure of a reflex angle > 180°.

(d) The measure of one complete revolution = 360°.

Q5) Which angle has a large measure?

First, estimate and then measure.

The measure of Angle A =

The measure of Angle B =

Q7) Fill in the blanks with acute, obtuse,

right or straight :

(a) An angle whose measure is less

than that of a right angle is__.

(b) An angle whose measure is greater than that of a right angle is ______.

(c) An angle whose measure is the sum of the measures of two right angles

is _____.

(d) When the sum of the measures of two angles is that of a right angle, then

each one of them is ______.

(e) When the sum of the measures of two angles is that of a straight angle and if

one of them is acute then the other should be _______.

Q6) From these two angles which have

larger measure? Estimate and then

confirm by measuring them.

Q8) Find the measure of the angle shown in each figure. (First estimate with your

eyes and then find the actual measurement with a protractor).

Q9) Find the angle measure between the hands of the clock in each figure:

Q10) Investigate

In the given figure, the angle measures 30°. Look

at the same figure through a magnifying glass.

Does the angle become larger? Does the size

of the angle change?

Q11) Measure and classify each angle :

Q1) What is the measure of (i) a right angle? (ii) a straight angle?

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Mathematics

NCERT Solutions - Mathematics, Class 6

Knowing Our Numbers

Whole Numbers

Playing With Numbers

Basic Geometrical Ideas

Understanding Elementary Shapes

Integers

Fractions

Decimals

Data Handling

Mensuration

Algebra

Ratio and Proportion

Symmetry

Exercise 5.1

Exercise 5.2

Exercise 5.3

Exercise 5.4

Exercise 5.5

Exercise 5.6

Exercise 5.7

Exercise 5.8

Exercise 5.9

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