In this chapter, we provide RD Sharma Class 6 ex 20.3 Solutions Chapter 20 Mensuration for English medium students, Which will very helpful for every student in their exams. Students can download the latest RD Sharma Class 6 ex 20.3 Solutions Chapter 20 Mensuration Maths pdf, Now you will get step by step solution to each question.

Textbook | NCERT |

Class | Class 6 |

Subject | Maths |

Chapter | Chapter 20 |

Chapter Name | Mensuration |

Exercise | Ex 20.3 |

Table of Contents

**RD Sharma Solutions for Class 6 Chapter 20 Mensuration** **Ex 20.3 Download PDF**

**Chapter 20: Mensuration Exercise 20.3**

**Question: 1**

The following figures are drawn on a squared paper. Count the number of squares enclosed by each figure and find its area, taking the area of each square as 1 cm^{2}.

**Solution:**

(i) There are 16 complete squares in the given shape.

Since, Area of one square = 1 cm^{2}

Therefore, Area of this shape = 16 × 1 = 16 cm^{2}

(ii) There are 36 complete squares in the given shape.

Since, Area of one square = 1 cm^{2}

Therefore, Area of 36 squares = 36 × 1 = 36 cm^{2}

(iii) There are 15 complete and 6 half squares in the given shape.

Since, Area of one square = 1 cm^{2}

Therefore, Area of this shape = (15 + 6 × 12) = 18 cm^{2}

(iv) There are 20 complete and 8 half squares in the given shape.

Since, Area of one square = 1 cm^{2}

Therefore, Area of this shape = (20 + 8 × 12) = 24 cm^{2}

(v) There are 13 complete squares, 8 more than half squares and 7 less than half squares in the given shape.

Area of one square = 1 cm^{2}

Area of this shape = (13 + 8 × 1) = 21 cm^{2}

(vi) There are 8 complete squares, 6 more than half squares and 4 less than half squares in the given shape.

Area of one square = 1 cm^{2}

Area of this shape = (8 + 6 × 1) = 14 cm^{2}

**Question: 2**

On a squared paper, draw (i) a rectangle, (ii) a triangle, (iii) any irregular closed figure, Find approximate area of each by counting the number of squares complete, more than half and exactly half.

**Solution:**

(i) A rectangle: This contains 18 complete squares.

If we assume that the area of one complete square is 1 cm^{2},

Then the area o this rectangle will be 18 cm^{2}.

(ii) A triangle: This triangle contains 4 complete squares, 6 more than half squares and 6 less than half squares.

If we assume that the area of one complete square is 1 cm^{2},

Then the area of this shape = (4 + 6 x 1) = 10 cm^{2}

(iii) Any irregular figure: This figure consists of 10 complete squares, 1 exactly half square, 7 more than half squares and 6 less than half squares.

If we assume that the area of one complete square is 1 cm^{2},

Then the area of this shape = (10 + 1 x12 + 7 x 1) = 17.5 cm^{2}

**Question: 3 **

*Draw any circle on the graph paper, Count the squares and use them to estimate the area the area of the circular region.*

**Solution:**

This circle on the squared paper consists of 21 complete squares, 15 more than half squares and 8 less than half squares.

Let us assume that the area of 1 square is 1 cm^{2}.

If we neglect the less than half squares while approximating more than half square as equal to a complete square, we get:

Area of this shape = (21 + 15) = 36 cm^{2}

**Question: 4**

Using tracing paper and centimeter graph paper to compare the areas of the following pairs of figures:

**Solution:**

Using tracing paper, we traced both the figures on a graph paper.

This figure contains 4 complete squares, 9 more than half squares and 9 less than half squares. Let us assume that the area of one square is 1 cm^{2}

If we neglect the less than half squares and consider the area of more than half squares as equal to area of complete square, we get:

Area of this shape = (4 + 9) = 13 cm^{2}

This figure contains 8 complete squares, 11 more than half squares and 10 less than half squares.

Let us assume that the area of one square is 1 cm^{2}.

If we neglect the less than half squares and consider the area of more than half squares as equal to area of complete square, we get:

Area of this shape = (8 + 11) = 19 cm^{2}

On comparing the areas of these two shapes, we get that the area of Fig. (ii) is more than that of Fig. (i).

**All Chapter RD Sharma Solutions For Class 6 Maths**

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