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Assertion and Reason Questions Class 6 Maths Chapter 5 Understanding Elementary Shapes
1.) Assertion (A) –A line segment is a fixed portion of a line
Reason (R) – We use this idea to compare line segments.
a) Both A and R are true and R is the correct explanation of A
b) Both A and R are true but R is not the correct explanation of A
c) A is true but R is false
d) A is false but R is true
2.) Assertion (A) – A triangle is made of three, a quadrilateral of four segments.
Reason (R) – The measure of each line segment is a unique number called its length.
a) Both A and R are true and R is the correct explanation of A
b) Both A and R are true but R is not the correct explanation of A
c) A is true but R is false
d) A is false but R is true
3.) Assertion (A) – The thickness of the rulermay cause difficulties in reading off the marks on it.
Reason (R) – To get correct measure, the eye should be correctly positioned, just vertically above the mark.
a) Both A and R are true and R is the correct explanation of A
b) Both A and R are true but R is not the correct explanation of A
c) A is true but R is false
d) A is false but R is true
4.) Assertion (A) – When we measure of the length of a line segment by a ruler, there may be some errors due to its thickness and angular viewing, these errors can be removed by measuring a line segment with the help of a divider
Reason (R) – The use of divider is better than a ruler.
a) Both A and R are true and R is the correct explanation of A
b) Both A and R are true but R is not the correct explanation of A
c) A is true but R is false
d) A is false but R is true
5.) Assertion (A) – When the hand of a clock moves from one position to another, it turns through an angle.
Reason (R) – The angle for one revolution is a complete angle.
a) Both A and R are true and R is the correct explanation of A
b) Both A and R are true but R is not the correct explanation of A
c) A is true but R is false
d) A is false but R is true
6.) Assertion (A) – a right angle is an angle equal to 180 degrees
Reason (R) – When two rays intersect and form a 90˚ angle or are perpendicular to each other at the intersection, they are said to form a right angle.
a) Both A and R are true and R is the correct explanation of A
b) Both A and R are true but R is not the correct explanation of A
c) A is true but R is false
d) A is false but R is true
7.) Assertion (A) – When the time is 11 o’clock, the angle formed between the hour hand and the minute hand is an acute angle. In other words, 30°, 40°, 57°, and so on are all acute angles
Reason (R) – Acute angles measure less than 90 degrees
a) Both A and R are true and R is the correct explanation of A
b) Both A and R are true but R is not the correct explanation of A
c) A is true but R is false
d) A is false but R is true
8.) Assertion (A) – if the angle formed where two line segments meet goes beyond a right angle, it’s obtuse.
Reason (R) – An obtuse angle has a measurement greater than 90 degrees but less than 180 degrees
a) Both A and R are true and R is the correct explanation of A
b) Both A and R are true but R is not the correct explanation of A
c) A is true but R is false
d) A is false but R is true
9.) Assertion (A) – 180º and 360º are reflex angles
Reason (R) – An angle whose measure is greater than 180° but less than 360° is termed as a reflex angle
a) Both A and R are true and R is the correct explanation of A
b) Both A and R are true but R is not the correct explanation of A
c) A is true but R is false
d) A is false but R is true
10.) Assertion (A) – The curved edge of protractor is divided into 160 equal parts.
Reason (R) – Protractor is an end-to-end test framework for Angular and AngularJS applications
a) Both A and R are true and R is the correct explanation of A
b) Both A and R are true but R is not the correct explanation of A
c) A is true but R is false
d) A is false but R is true
11.) Assertion (A) – The symbol used to represent a parallel line is “|”.
Reason (R) – Perpendicular lines are the lines that intersect each other at right angles (90 degrees).
a) Both A and R are true and R is the correct explanation of A
b) Both A and R are true but R is not the correct explanation of A
c) A is true but R is false
d) A is false but R is true
12.) Assertion (A) – Any point on the perpendicular bisector is equidistant from the endpoints of the line segment.
Reason (R) – a line or a segment perpendicular to a segment that passes through the midpoint of the segment
a) Both A and R are true and R is the correct explanation of A
b) Both A and R are true but R is not the correct explanation of A
c) A is true but R is false
d) A is false but R is true
13.) Assertion (A) – Scalene Triangle has no line of symmetry
Reason (R) – A triangle having all three unequal sides is called a Scalene Triangle
a) Both A and R are true and R is the correct explanation of A
b) Both A and R are true but R is not the correct explanation of A
c) A is true but R is false
d) A is false but R is true
14.) Assertion (A) – The angles opposite to equal sides are equal in measure
Reason (R) – A triangle having two equal sides is called an Isosceles Triangle
a) Both A and R are true and R is the correct explanation of A
b) Both A and R are true but R is not the correct explanation of A
c) A is true but R is false
d) A is false but R is true
15.) Assertion (A) – Equilateral Triangle has two sides of equal length
Reason (R) – A triangle having three equal sides is called an Equilateral Triangle
a) Both A and R are true and R is the correct explanation of A
b) Both A and R are true but R is not the correct explanation of A
c) A is true but R is false
d) A is false but R is true
16.) Assertion (A) – The side opposite to the acute angle is the longest side of the triangle
Reason (R) – If each angle is less than 90°, then the triangle is called an acute angled triangle
a) Both A and R are true and R is the correct explanation of A
b) Both A and R are true but R is not the correct explanation of A
c) A is true but R is false
d) A is false but R is true
17.) Assertion (A) – Right-angled triangle or more formally an orthogonal triangle is a triangle in which one angle is a right
Reason (R) – If any one angle is a right angle then the triangle is called a right angled triangle.
a) Both A and R are true and R is the correct explanation of A
b) Both A and R are true but R is not the correct explanation of A
c) A is true but R is false
d) A is false but R is true
18.) Assertion (A) – if the square of the longest side is less than the sum of the squares of two smaller sides.
Reason (R) – If any one angle is greater than 90°, then the triangle is called an obtuse angled triangle.
a) Both A and R are true and R is the correct explanation of A
b) Both A and R are true but R is not the correct explanation of A
c) A is true but R is false
d) A is false but R is true
19.) Assertion (A) – Rectangles and Rhombuses are all Parallelograms
Reason (R) – a parallelogram is a simple (non-self-intersecting) quadrilateral with two pairs of parallel sides.
a) Both A and R are true and R is the correct explanation of A
b) Both A and R are true but R is not the correct explanation of A
c) A is true but R is false
d) A is false but R is true
20.) Assertion (A) – It has two diagonals that bisect each other at right angles.
Reason (R) – a rhombus (plural rhombi or rhombuses) is a quadrilateral whose four sides all have the same length
a) Both A and R are true and R is the correct explanation of A
b) Both A and R are true but R is not the correct explanation of A
c) A is true but R is false
d) A is false but R is true
21.) Assertion (A) – A trapezium is a convex quadrilateral with exactly one pair of opposite sides parallel to each other
Reason (R) – A two-dimensional quadrilateral that has a pair of non-adjacent parallel sides and a pair of non-parallel sides is referred to as a trapezium shape
a) Both A and R are true and R is the correct explanation of A
b) Both A and R are true but R is not the correct explanation of A
c) A is true but R is false
d) A is false but R is true
22.) Assertion (A) – A pyramid is a shape with a single base; the other faces are triangles
Reason (R) – Each side of the cube is a flat surface called a flat face
a) Both A and R are true and R is the correct explanation of A
b) Both A and R are true but R is not the correct explanation of A
c) A is true but R is false
d) A is false but R is true
ANSWERS:-
1: A 2:B 3:A 4:B 5:B 6:C
7:A 8:A 9:C 10:D 11:D 12:A
13:A 14:B 15:D 16:C 17:A 18:D
19:A 20:B 21:A 22:B