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प्रश्न
A 45° – 45° – 90° set-square has ______ line/lines of symmetry.
उत्तर
A 45° – 45° – 90° set-square has one line/lines of symmetry.
Explanation:
Since, a 45° – 45° – 90° set square has a shape of isosceles triangle and an isosceles triangle has 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.
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.
Draw the lines of symmetry of the following.
Which of the following letters does not have the vertical line of symmetry?
Which of the following letters has only one line of symmetry?
Find the number of lines of symmetry for the following shape:
Copy the triangle in the following figure on squared paper. Draw the line(s) of symmetry, if any and identify the type of triangle. (Some of you may like to trace the figure and try paper-folding first!)
Can you draw a triangle which has exactly one line of symmetry?
Consider the letters of English alphabets, A to Z. List among them the letters which have no lines of symmetry (like Q)
