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प्रश्न
Have you ever seen a windmill? What is it used for?
उत्तर
Yes, I have seen a windmill.
The windmill is used for grinding corn, pumping water. It is also used for generating electricity.
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संबंधित प्रश्न
Complete the following table:
| Point | Reflection in | ||
| x-axis | y-axis | origin | |
| (i) (8, 2) | |||
| (ii) (5, 6) | |||
| (iii) (4, −5) | |||
| (iv) (6, −2) | |||
| (v) (−3, 7) | |||
| (vi) (−4, 5) | |||
| (vii) (−2, −7) | |||
| (viii) (−6, −3) | |||
| (ix) (4, 0) | |||
| (x) (−7, 0) | |||
| (xi) (0, −6) | |||
| (xii) (0, 7) | |||
| (xiii) (0, 0) | |||
The point P (3, – 8) is reflected in origin to point Q. The Point Q is further reflected in the x-axis to point R. Find :
(i) the co-ordinates of Q
(ii) the co-ordinates of R
(iii) the image of P (3, – 8) in the y-axis.
Examine the following figure carefully, draw line(s) of symmetry in whichever figure possible:
Draw the line(s) of symmetry for the figure drawn below:
In the following case, construct a point that is symmetric to the given point P with respect to the given line AB.
Find the alphabets in the box which have Reflection symmetry
| A | M | P | E |
| D | I | K | O |
| N | X | S | H |
| U | V | W | Z |
Draw the following:
A figure which has reflection symmetry but no rotational symmetry
Does it look the same on half a turn? Discuss.
Find the number of lines of symmetry in the following shapes. How will you check your answers?
In each figure alongside, a letter of the alphabet is shown along with a vertical line. Take the mirror image of the letter in the given line. Find which letters look the same after reflection (i.e. which letters look the same in the image) and which do not. Can you guess why?
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