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प्रश्न
A 45° – 45° – 90° set-square and a protractor have the same number of lines of symmetry.
विकल्प
True
False
उत्तर
This statement is True.
Explanation:
Since, both 45° – 45° – 90° set-square and protractor have only one line of symmetry.
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संबंधित प्रश्न
Use graph paper to answer the following questions. (Take 2 cm = 1 unit on both axes)
1) Plot the points A( -4, 2) and B(2, 4)
2) A' is the image of A when reflected at the y-axis. Plot it on the graph paper and write the coordinates of A'.
3) B' is the image of B when reflected on the line AA'. Write the coordinates of B'.
4) Write the geometric name of the figure ABA'B'.
5) Name a line of symmetry of the figure formed
Use graph paper for this question) (4)
A(0, 3), B(3, −2) and O(0, 0) are the vertices of triangle ABO.
(1) Plot the triangle on a graph sheet taking 2 cm = 1 unit on both the axes.1
(2) Plot D the reflection of B in the Y-axis, and write its coordinates.
(3) Give the geometrical name of the figure ABOD.
(4) Write the equation of the line of symmetry of the figure ABOD.
Complete the following figure, about the given lines of symmetry which are shown by dotted lines and name the figure thus obtained:
Part of geometrical figure is given in each of the diagrams below. Complete the figures, so that the line ‘m’, in each case, is the line of symmetry, of the completed figure. Recognizable free hand sketches, would be awarded full marks.
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The number of capital letters of the English alphabets having both horizontal and vertical lines of symmetry is ______.
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