Mathematics
On a graph paper plot the triangle ABC, whose vertices are at the points A(3, 1), B(5, 0) and (7, 4). On the same diagram, draw the image of the triangle ABC under reflection in the origin O (0, 0).
Reflection
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Answer
The graph is shown below:
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Related Questions
Use graph paper for this question.
(i) The point P(2, -4) is reflected about the line x = 0 to get the image Q. Find the coordinates of Q.
(ii) Point Q is reflected about the line y = 0 to get the image R. Find the coordinates of R.
(iii) Name the figure PQR.
(iv) Find the area of the figure PQR.
Using a graph paper, plot the points A(6, 4) and B(0, 4).
(i) Reflect A and B in the origin to get images A' and B'.
(ii) Write the coordinates of A' and B'.
(iii) State the geometrical name for the figure ABA'B'.
(iv) Find its perimeter.
Use graph paper for this question.
Plot the points O(0, 0), A(-4, 4), B(-3, 0) and C(0, -3).
(i) Reflect points A and B on the y-axis and name them A' and B' respectively. Write down their co-ordinates.
(ii) Name the figure OABCB'A'.
Use a graph paper for this question (take 2 cm = 1 unit on both x and y axes).
(i) Plot the following points : A(0, 4), B(2, 3), C(1, 1) and D(2, 0).
(ii) Reflect points B, C, D on y-axis and write down their coordinates. Name the images as B', C', D' respectively.
(iii) Join points A, B, C, D, D', C', B' and A in order, so as to form a closed figure. Write down the equation of line of symmetry of the figure formed.