# RBSE Solutions for Class 6 Maths Chapter 9 Simple Two Dimensional Shapes Ex 9.2

RBSE Solutions for Class 6 Maths Chapter 9 Simple Two Dimensional Shapes Ex 9.2 is part of RBSE Solutions for Class 6 Maths. Here we have given Rajasthan Board RBSE Class 6 Maths Chapter 9 Simple Two Dimensional Shapes Exercise 9.2.

 Board RBSE Textbook SIERT, Rajasthan Class Class 6 Subject Maths Chapter Chapter 9 Chapter Name Simple Two Dimensional Shapes Exercise Ex 9.2 Number of Questions 7 Category RBSE Solutions

## Rajasthan Board RBSE Class 6 Maths Chapter 9 Simple Two Dimensional Shapes Ex 9.2

Question 1.
Identify the triangles in (RBSESolutions.com) the figures.

Solution:
Triangles in given figures : (iv), (vi), (vii)

Question 2.
Identify each of the following (RBSESolutions.com) triangles on the basis of angles.

Solution:
Identification of triangles on the basis of angles
(i) Right – angled triangle
(ii) Acute – angled triangle
(iii) Obtuse – angle triangle

Question 3.
Identify each of the following (RBSESolutions.com) triangles on the basis of sides.

Solution:
Identification of triangles on the basis of sides
(i) Equilateral triangle
(ii) Scalene triangle
(ii) Isosceles triangle.

Question 4.
List the name of each of the triangles (RBSESolutions.com) formed in each of the following figures.

Solution:
Name of triangles in the given figures are
(i) ∆ABC, ∆DEF, ∆DBF, ∆EFC, ∆ADE
(ii) ∆PTU, ∆STW, ∆VRW, ∆UVQ

Question 5.
Name the types of following (RBSESolutions.com) triangles on the basis of given angles
(i) 105°, 46°, 29°
(ii) 60°, 60°, 60°
(iii) 57°, 33°, 90°
Solution:
Types of triangles on the basis of angles
(i) 1050 ≠ 46° ≠ 29°, 105° > 90° Obtuse – angled triangle
(ii) 60° = 60° = 60°, 60° < 90° Acute – angled triangle
(iii) 57° ≠ 33° ≠ 90° Right – angled triangle.

Question 6.
Name types of following triangles (RBSESolutions.com) on the basis of given sides
(i) 3.5 cm, 3 cm, 1.8 cm.
(ii) 2.8 cm, 2 cm, 2 cm.
(iii) 5.2 cm, 5.2 cm, 5.2 cm.
Solution:
Types of triangles on the basis of sides
(i) 3.5 ≠ 3 ≠ 1.8 – Scalene triangle
(ii) 2.8 ≠ 2 = 2 – Isosceles triangle
(iii) 5.2 = 5.2 = 5.2 – Equilateral triangle.

Question 7.
Mark True or false
(i) A triangle has three sides, three (RBSESolutions.com) vertices and three angles.
(ii) If all the angles of a triangle are less than a right angle, then such triangle is called a right angled triangle.
(iii) A triangle having three unequal sides is called an equilateral triangle.
(iv) A triangle having two equal sides is called an isosceles triangle.
(v) In a triangle, if one angle is obtuse angle and two angles are acute angles, then the triangle is called an obtuse angled triangle.
Solution:
(i) True
(ii) False
(iii) False
(iv) True
(v) True.

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