Mathematics
Study the graph and answer the following questions :
(i) Write down the co-ordinates of A, B and C.
(ii) Reflect A, B and C in origin and mark the points as F, E and D respectively. Write down the co-ordinates of D, E and F.
(iii) Is BC and DE parallel ? Justify your answer.
Related Questions
Use graph paper for this question :
Use 1 cm = 1 unit on both the axes.
(i) Plot the points A(4, 5) and B(-1, -3)
(ii) A' is the image of A when reflected in the y-axis. Write down the co-ordinates of A' and plot it on the graph paper.
(iii) B' is the image of B when reflected in the x-axis followed by reflection in the origin. Write down the co-ordinates of B' and plot it on the graph paper.
(iv) Write down the geometrical name of the figure AA'BB'.
(v) Name two invariant points under reflection in y-axis.
Use graph sheet for this question. Take 2 cm = 1 unit along the axes.
(a) Plot A(1, 2), B(1, 1) and C(2, 1)
(b) Reflect A, B and C about y-axis and name them as A', B' and C'.
(c) Reflect A, B, C, A', B' and C' about x-axis and name them as A'', B'', C'', A''', B''' and C''' respectively.
(d) Join A, B, C, C'', B'', A'', A''', B''', C''', C', B' , A' and A to make it a closed figure.
ABC is a triangle as shown in the figure below.
(a) Write down the coordinates of A, B and C on reflecting through the origin.
(b) Write down the coordinates of the point/s which remain invariant on reflecting the triangle ABC on the x-axis and y-axis respectively.