RBSE Solutions for Class 6 Maths Chapter 9 Simple Two Dimensional Shapes Additional Questions

RBSE Solutions for Class 6 Maths Chapter 9 Simple Two Dimensional Shapes Additional Questions 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 Additional Questions.

Board	RBSE
Textbook	SIERT, Rajasthan
Class	Class 6
Subject	Maths
Chapter	Chapter 9
Chapter Name	Simple Two Dimensional Shapes
Exercise	Additional Questions
Number of Questions	15
Category	RBSE Solutions

Rajasthan Board RBSE Class 6 Maths Chapter 9 Simple Two Dimensional Shapes Additional Questions

Multiple Choice Questions

Question 1.
If two intersecting lines are mutually perpendicular, (RBSESolutions.com) then angle between them will be
(i) 60°
(ii) 45°
(iii) 90°
(iv) 180°

Question 2.
Angle whose measurement is more than 90° and less than 180°, called
(i) acute angle
(ii) obtuse angle
(iii) complete angle
(iv) None of these

Question 3.
Figure covered by three (RBSESolutions.com) unequal sides will be
(i) equilateral triangle
(ii) scalene triangle
(iii) right – angled triangle
(iv) isosceles triangle

Question 4.
Name of polygon made by five sides, will be
(i) pentagon
(ii) hexagon
(iii) quadrilateral
(iv) octagen

Question 5.
After looking an angled figure (RBSESolutions.com) by a magnifying mirror, we find figure as
(i) bigger angle
(ii) smaller angle
(iii) no. effect on angle
(iv) None of these

Answers:
1. (iii)
2. (ii)
3. (ii)
4. (i)
5. (iii)

Question 1.
Fill in the blanks
(i) If angle between two (RBSESolutions.com) intersecting line is 90°, then those lines are ……….. .
(ii) If one angle of triangle in 90°, then it is called ……….. .
(iii) Figure having four sides called ……….. .
(iv) We can find area and perimeter of ……….. figures.
(v) Inner part of closed figure called ……….. corner part of closed figure called. and outer part of closed figure called ……….. .
(vi) Figure covered by three or more than three sides called ……….. .
(vii) Quadrilateral whose opposite sides and all angles are equal called ……….. .
(viii) Quadrilateral whose all sides and all angles are equal called ……….. .
Solution:
(i) mutually perpendicular
(ii) right angled triangle
(iii) quadrilateral
(iv) closed
(v) interior, boundary, exterior
(vi) polygon
(vii) rectangle
(viii) square.

Very Short/Short Answer Type Questions

Question 1.
What is (RBSESolutions.com) acute angle?
Solution:
Angle whose measure is less than 90°, called acute angle.

Question 2.
What is straight angle ?
Solution:
Angle whose measure is 180°, called straight angle.

Question 3.
How many right angle can a triangle?
Solution:
One.

Question 4.
What is (RBSESolutions.com) rotation?
Solution:
A round complete by a hand of a watch is called 1 rotation. It makes an angle of 360°, which is called complete angle.

Question 5.
Identify the given triangles on the basis of their sides.

Solution:
(a) Isosceles triangle
(b) Scalene triangle
(c) Equilatral triangle
(d) Equilateal triangle
(e) Isosceles triangle
(f) Scalene triangle.

Question 6.
Identify the given triangles on (RBSESolutions.com) the basis of their angles.

Solution:
(i) Obtuse – angled triangle
(ii) Right angled triangle
(iii) Obtuse angled triangle
(iv) Acute angled triangle
(v) Acute angled triangle
(vi) Acute angled triangle
(vii) Right angled triangle
(viii) Obtuse angled triangle

Question 7.
Name each (RBSESolutions.com) polygon

Solution:
(a) Quadrilateral
(b) Triangle
(c) Pentagon
(d) Hexagon.

Question 8.
Identify which of the following figures are polygon. If any (RBSESolutions.com) of them is not polygon, give reason.

Solution:
(a) No, because it is an open curve.
(b) Yes, because it is a closed curve made up of line segment.
(c) No, because this closed curve is not made up of line segments.
(d) No, because this closed curve is not made up of line segments.

Question 9.
Try to construct triangle with the help of matchsticks. Some (RBSESolutions.com) of them are shown in figure. Can you construct some more ?

(a) 3 matchsticks
(b) 4 matchsticks
(c) 5 matchsticks
(d) 6 matchsticks
Note : Use all available matchsticks. Name the type of triangle in each condition. If you cannot construct triangle then think reason.
Solution:
(a) Yes, quadrilateral triangle.
(b) No, because sum of (RBSESolutions.com) two sides of triangle is need to be more than third side.
(c) Yes, isosceles triangle.
(d) Yes, equilateral triangle.

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