**Collins Maths Solutions Class 6 Chapter 13 Understanding Elementary Shapes**

Welcome to NCTB Solution. Here with this post we are going to help 6th class students for the Solutions of Collins Maths Class 6 Mathematics, Chapter 13, Understanding Elementary Shapes. Here students can easily find Exercise wise solution for chapter 13, Understanding Elementary Shapes. Students will find proper solutions for Exercise 13.1, 13.2, 13.3, 13.4 and 13.5 Our teacher’s solved every problem with easily understandable methods so that every students can understand easily. Here in this post all the solutions are based on ICSE latest Syllabus.

**Understanding Elementary Shapes Exercise 13.1 Solution :**

**Question no – (1) **

**Solution : **

Measure of the given line segments are,

AB = 4.8 cm

CD = 3.7 cm

EF = 4.2 cm

**Question no – (2) **

**Solution : **

LM, MN, NO, PO, QR, and KL are all line segment.

**Measures :**

LM = 1.5 cm, MN = 4.2 cm, NO = 2 cm,

OP = 1 cm, PQ = 1.2 cm, QK = 2.5 cm, KL= 2.6 cm

The line segments from the longest to the shortest,

MN > KL > QK > NO > LM > PQ > OP

**Question no – (3) **

**Solution : **

**(a)** 32 km → **(iv)** 32000 m

**(b)** 3.2 km → **(v)** 3200 m

**(c)** 0.32 km → **(i)** 320 m

**(d)** 3.02 km → **(ii)** 3020 m

**(e)** 3.002 km → **(iii)** 3002 m

**Question no – (4) **

**Solution : **

**Figure** **–** **(a)** is a Intersecting lines.

**Figure** **–** **(b)** is a Parallel lines.

**Figure –** **(c)** is a Non parallel lines.

**Figure** **– (d)** is a Perpendicular lines.

**Figure** **–** **(e)** is a Perpendicular lines.

**Understanding Elementary Shapes Exercise 13.2 Solution :**

**Question no – (2) **

**Solution : **

**(a)** An angle which is greater than a right angle and less than a straight angle is __Obtuse__ angle.

**(b)** The measure of a complete angle is __360°__

**(c)** An angle whose measure is 265° is called ** Reflex** angle.

**(d)** A straight angle equals ** Two** right angles.

**(e)** Four right angles form a ** Complete** angle.

**Question no – (3) **

**Solution : **

If she makes half a turn to her right, then she will be facing __South-East__ direction.

**Question no – (4) **

**Solution : **

76° → It is a **Acute** angle.

215° → It is a **Reflex** angle.

142° → It is a **Obtuse** angle.

179° → It is a **Obtuse** angle.

90° → It is a **Right** angle.

112° → It is a **Obtuse** angle.

45° → It is a **Acute** angle.

360° → It is a **Complete** angle.

**Question no – (5) **

**Solution : **

The angle between the hour hand and the minute hand in Figure 1 is **90°**

The angle between the hour hand and the minute hand in Figure 2 is **0°**

The angle between the hour hand and the minute hand in Figure 3 is **40°**

The angle between the hour hand and the minute hand in Figure 4 is **150°**

The angle between the hour hand and the minute hand in Figure 5 is **180°**

**Understanding Elementary Shapes Exercise 13.3 Solution :**

**Question no – (1) **

**Solution : **

**Figure – (i) **is a Scalene triangle.

**Figure – (ii)** is a Scalene triangle.

**Figure – (iii)** is a Isosceles triangle..

**Figure – (iv)** is a Equilateral triangle.

**Question no – (2) **

**Solution : **

**Figure – (i)** is a Acute angles triangle.

**Figure – (ii) **is a Obtuse angled triangle.

**Figure – (iii)** is a Acute angled triangle.

**Figure – (iv) **is a Right angled triangle.

**Question no – (3) **

**Solution : **

Correct option is – **(b)**

If one angle of a triangle is 90°, then the other two angles are __Acute angles__**.**

**Question no – (4) **

**Solution : **

**(a)** All parallelogram are rectangles

→ Given statement is **True.**

**(b)** All squares are rectangles

→ Given statement is **False.**

**(c)** All rhombus are parallelograms

→ Given statement is **False.**

**(d)** All kites are parallelograms

→ Given statement is **True.**

**Understanding Elementary Shapes Exercise 13.5 Solution :**

**Question no – (1) **

**Solution : **

**(i) Cube have**

Vertices = 8

Edges = 12

Faces = 6

**(ii) Cuboid have**

Vertices = 8

Edges = 12

Faces = 6

**(iii) Cylinder have**

Vertices = 0

Edges = 2

Faces = 3

**(iv) Cone have**

Vertices = 1

Edges = 1

Faces = 2

**(v) Sphere have**

Vertices = 0

Edges = 0

Faces = 1

**Question no – (2) **

**Solution : **

According to the given data in the question,

**(a)** Cube or cuboid.

**(b)** Triangular prism.

**Next Chapter Solution : **

👉 Chapter 16 👈