![]() When plot these points on the graph paper, we will get the figure of the image (rotated figure). In the above problem, vertices of the image areħ. When we apply the formula, we will get the following vertices of the image (rotated figure).Ħ. When we rotate the given figure about 90° clock wise, we have to apply the formulaĥ. When we plot these points on a graph paper, we will get the figure of the pre-image (original figure).Ĥ. Let us look at some examples to understand how 90 degree clockwise rotation can be done on a figure. In the above problem, the vertices of the pre-image areģ. Rule : When we rotate a figure of 90 degrees clockwise, each point of the given figure has to be changed from (x, y) to (y, -x) and graph the rotated figure. First we have to plot the vertices of the pre-image.Ģ. So the rule that we have to apply here is (x, y) -> (y, -x).īased on the rule given in step 1, we have to find the vertices of the reflected triangle A'B'C'.Ī'(1, 2), B(4, -2) and C'(2, -4) How to sketch the rotated figure?ġ. There are coordinate rules for counterclockwise rotations of 90, 180, and 270 degrees about. Here are the rotation rules: 90° clockwise rotation: (x,y) becomes (y,-x) 90° counterclockwise rotation: (x,y) becomes (-y,x) 180° clockwise and counterclockwise rotation: (x, y) becomes (-x,-y) How do you rotate a component To rotate a component by dragging: Right-click and drag the component. Here triangle is rotated about 90 ° clock wise. A rotation of 360 degrees returns a image to the preimage position. If this triangle is rotated about 90 ° clockwise, what will be the new vertices A', B' and C'?įirst we have to know the correct rule that we have to apply in this problem. Let A(-2, 1), B (2, 4) and C (4, 2) be the three vertices of a triangle. If this triangle is rotated 270° clockwise, find the. Problem 1 : Let F (-4, -2), G (-2, -2) and H (-3, 1) be the three vertices of a triangle. Let us consider the following example to have better understanding of reflection. (-y, x) When we rotate a figure of 270 degree clockwise, each point of the given figure has to be changed from (x, y) to (-y, x) and graph the rotated figure. Here the rule we have applied is (x, y) -> (y, -x). ![]() ![]() Once students understand the rules which they have to apply for rotation transformation, they can easily make rotation transformation of a figure.įor example, if we are going to make rotation transformation of the point (5, 3) about 90 ° (clock wise rotation), after transformation, the point would be (3, -5). ![]()
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