Symmetry - MoreMaths

Mathematics
Class 6
Symmetry
Q1)
Which of the following statements is incorrect?
a)
b)
c)
d)
Q2)
Q3)
An equilateral triangle can have no line of symmetry.
A rectangle can have exactly two lines of symmetry.
A square can have exactly four lines of symmetry
A circle can have infinite lines of symmetry.
Which of the following statements is not correct about kites?
a)
b)
c)
d)
(1 Mark)
(1 Mark)
A kite is a symmetrical figure.
A kite is symmetrical along its longer diagonal.
A kite is not symmetrical about its shorter diagonal.
A kite has exactly two lines of symmetry.
Choose the correct answer.
(1 Mark)
A parallelogram has ------ line(s) of symmetry.
a)
b)
c)
d)
1
2
0
4
Q4)
Fill in the blanks: An angle whose measure is more than 90° but less than 18° is called an (1 Mark)
------- angle.
Q5)
Fill in the blanks: The sum of the angle forming a linear pair is -------- .
(1 Mark)
Q6)
Fill in the blanks: One complete angle = -------- right angles.
(1 Mark)
Q7)
Fill in the blanks: An angle which is a complement of itself is -------- .
(1 Mark)
Q8)
For every whole number however large, we can always find its successor. This means
there is no --------- whole number.
(1 Mark)
Q9)
Fill in the blanks: The measure of a straight angle is ------ .
(1 Mark)
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Mathematics
Class 6
Q10)
What can you say about the other angle if one of the angle of a pair of
complementary angles is
(3 Marks)
a. less than 45°
b. greater than 45°
c. equal to 45°
Q11)
A man is moving towards east and changes his direction through a right angle to his
left. On which direction is he walking now?
(2 Marks)
Q12)
One of the angle forming a linear pair is greater then 90°. Is the other angle obtuse or
acute? Give reason to support your answer.
(1 Mark)
Q13)
What is the angle formed between North and East directions. If a person moves 45°
away from North direction, find the angle between the East direction and the person.
(1 Mark)
ǀ Copyright © 2015 Macmillan Publishers India Ltd. All rights reserved
Mathematics
Class 6
Answers
Q1)
An equilateral triangle can have no line of symmetry.
Q2)
A kite has exactly two lines of symmetry.
Q3)
0
Q4)
Obtuse
Q5)
180°
Q6)
Four
Q7)
45°
Q8)
Largest
Q9)
180°
Q10)
a. Greater than 45°
b. Less than 45°
c. Equal to 45°
Q11)
South direction
Q12)
Acute angle
Q13)
Obtuse angle
ǀ Copyright © 2015 Macmillan Publishers India Ltd. All rights reserved