# Samacheer Kalvi solutions for Mathematics Term 1 - Class 4th Tamil Nadu State Board chapter 1 - Geometry [Latest edition]

## Chapter 1: Geometry

Exercise 1.1Exercise 1.2Exercise 1.3Exercise 1.4Exercise 1.5Exercise 1.6Exercise 1.7
Exercise 1.1 [Page 3]

### Samacheer Kalvi solutions for Mathematics Term 1 - Class 4th Tamil Nadu State Board Chapter 1 Geometry Exercise 1.1 [Page 3]

Exercise 1.1 | Q A. (i) | Page 3

Write the name of shape in the following picture

Exercise 1.1 | Q A. (ii) | Page 3

Write the name of shape in the following picture.

Exercise 1.1 | Q B. | Page 3
 i Write the number of squares and triangles in the given picture ii Write the number of rectangles and triangles in the given picture iii Identify the shapes and write the names in the boxes given below.
Exercise 1.2 [Page 6]

### Samacheer Kalvi solutions for Mathematics Term 1 - Class 4th Tamil Nadu State Board Chapter 1 Geometry Exercise 1.2 [Page 6]

#### Fill in the blanks

Exercise 1.2 | Q A. i. | Page 6

All closed four sided figure are called ______________.

Exercise 1.2 | Q A. ii. | Page 6

A ______________ has four equal sides and equal diagonals

Exercise 1.2 | Q A. iii. | Page 6

The opposite sides of a ______________ are equal.

Exercise 1.2 | Q A. iv. | Page 6

A _____________ has no sides.

Exercise 1.2 | Q A. v. | Page 6

Diagonals are equal in ____________ and ____________.

Exercise 1.2 | Q B. | Page 6

Write the name of the sides and diagonals.

Exercise 1.3 [Page 7]

### Samacheer Kalvi solutions for Mathematics Term 1 - Class 4th Tamil Nadu State Board Chapter 1 Geometry Exercise 1.3 [Page 7]

Exercise 1.3 | Q a. | Page 7

Draw circle for the following measurement.

6 cm

Exercise 1.3 | Q b. | Page 7

Draw circle for the following measurement.

5.5 cm

Exercise 1.3 | Q c. | Page 7

Draw circle for the following measurement.

8 cm

Exercise 1.3 | Q d. | Page 7

Draw circle for the following measurement.

6.8 cm

Exercise 1.3 | Q e. | Page 7

Draw circle for the following measurement.

8.6 cm

Exercise 1.4 [Pages 8 - 9]

### Samacheer Kalvi solutions for Mathematics Term 1 - Class 4th Tamil Nadu State Board Chapter 1 Geometry Exercise 1.4 [Pages 8 - 9]

#### Fill in the blanks

Exercise 1.4 | Q A. i. | Page 8

All the radii of a circle are _______________

Exercise 1.4 | Q A. ii. | Page 8

The ______________ is the longest chord of a circle

Exercise 1.4 | Q A. iii. | Page 8

A line segment joining any point on the circle to its center is called the _____________ of the circle

Exercise 1.4 | Q A. iv. | Page 8

A line segment with its end points on the circle is called a ______________

Exercise 1.4 | Q A. v. | Page 8

Exercise 1.4 | Q B. i. | Page 9

Find the diameter of the circle

Exercise 1.4 | Q B. ii. | Page 9

Find the diameter of the circle

Exercise 1.4 | Q B. iii. | Page 9

Find the diameter of the circle

Exercise 1.4 | Q C. i. | Page 9

Find the radius of the circle

Diameter = 24 cm

Exercise 1.4 | Q C. ii. | Page 9

Find the radius of the circle

Diameter = 30 cm

Exercise 1.4 | Q C. iii. | Page 9

Find the radius of the circle

Diameter = 76 cm

Exercise 1.5 [Page 11]

### Samacheer Kalvi solutions for Mathematics Term 1 - Class 4th Tamil Nadu State Board Chapter 1 Geometry Exercise 1.5 [Page 11]

Exercise 1.5 | Q A. i. | Page 11

Find the perimeter of the following figure

Exercise 1.5 | Q A. ii. | Page 11

Find the perimeter of the following figure

Exercise 1.5 | Q A. iii. | Page 11

Find the perimeter of the following figure

Exercise 1.5 | Q A. iv. | Page 11

Find the perimeter of the following figure

Exercise 1.5 | Q A. v. | Page 11

Find the perimeter of the following figure

#### Solve the following.

Exercise 1.5 | Q B. 1. | Page 11

A side of a square-shaped sandbox in Gandhi Park measures 30 cm. Determine the perimeter of the sandbox

Exercise 1.5 | Q B. 2. | Page 11

Find the perimeter of a rectangle, whose sides are 12 cm and 8 cm

Exercise 1.5 | Q B. 3. | Page 11

Find the perimeter of the triangle, whose sides are 13 cm, 5 cm and 14 cm

Exercise 1.5 | Q B. 4. | Page 11

The adjacent sides of a parallelogram are 6 cm and 7 cm. What is the perimeter of the parallelogram?

Exercise 1.5 | Q B. 5. | Page 11

The sides of a trapezoid measure 8 cm, 7 cm, 4 cm and 5 cm respectively. What is the perimeter of the trapezoid?

Exercise 1.6 [Page 14]

### Samacheer Kalvi solutions for Mathematics Term 1 - Class 4th Tamil Nadu State Board Chapter 1 Geometry Exercise 1.6 [Page 14]

Exercise 1.6 | Q A. i. | Page 14

Fill the following diagram with appropriate tile

Exercise 1.6 | Q A. ii. | Page 14

Fill the following diagram with appropriate tile

Exercise 1.7 [Page 17]

### Samacheer Kalvi solutions for Mathematics Term 1 - Class 4th Tamil Nadu State Board Chapter 1 Geometry Exercise 1.7 [Page 17]

Exercise 1.7 | Q A. i. | Page 17

A cuboid has ______________ edges

• 6

• 8

• 12

Exercise 1.7 | Q A. ii. | Page 17

The shape of a dice is like a _______________

• cuboid

• cube

• sphere

Exercise 1.7 | Q A. iii. | Page 17

A _____________ has a curved surface and two plane faces

• cylinder

• cone

• sphere

Exercise 1.7 | Q A. iv. | Page 17

I have one vertex and one plane face. I am a _______________

• cone

• cylinder

• sphere

Exercise 1.7 | Q A. v. | Page 17

A cube has _______________ vertices

• 8

• 12

• 6

## Chapter 1: Geometry

Exercise 1.1Exercise 1.2Exercise 1.3Exercise 1.4Exercise 1.5Exercise 1.6Exercise 1.7

## Samacheer Kalvi solutions for Mathematics Term 1 - Class 4th Tamil Nadu State Board chapter 1 - Geometry

Samacheer Kalvi solutions for Mathematics Term 1 - Class 4th Tamil Nadu State Board chapter 1 (Geometry) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the Tamil Nadu Board of Secondary Education Mathematics Term 1 - Class 4th Tamil Nadu State Board solutions in a manner that help students grasp basic concepts better and faster.

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Concepts covered in Mathematics Term 1 - Class 4th Tamil Nadu State Board chapter 1 Geometry are Two Dimensional Shapes, How to Draw a Circle Using a Compass, Concept of Circle - Centre, Radius, Diameter, Arc, Sector, Chord, Segment, Semicircle, Circumference, Interior and Exterior, Concentric Circles, Perimeter of a Rectangle, Perimeter of Squares, Perimeter of Triangles, Perimeter of Polygon, Creating Objects by Combining Different 2d Shapes, Three Dimensional Shapes.

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