15. The number of lines of symmetry in a 45° 45° 90° set square is (A) 0 (B) 1 (C) 2 (D) 3
16. The number of lines of symmetry in a 30° - 60° 90° set square is
(A) 0 (B) 1 (C) 2 (D) 3
17. The instrument in the geometry box having the shape of a triangle is called a (A) Protractor (B) Compasses (C) Divider (D) Set-square
18. The distance of the image of a point (or an object) from the line of symmetry (mirror) is ______as that of the point (object) from the line (mirror).
19. The number of lines of symmetry in a picture of Taj Mahal is_______
20. The number of lines of symmetry in a rectangle and a rhombus are _____(equal/unequal).
21. The number of lines of symmetry in a rectangle and a square are_______ (equal/unequal).
22. If a line segment of length 5cm is reflected in a line of symmetry (mirror). then its reflection (image) is a____ of length_____
23. If an angle of measure 80° is reflected in a line of symmetry, then the reflection is an______ of measure_____.
24. The image of a point lying on a line l with respect to the line of symmetry lies on______
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Answer:
15. b 1
16. a 0
17. d
18. same
19. one
20. equal
21. unequal
22. line segment, 5cm.
23. an angle, 80⁰.
24. line 1
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