Today in class students began learning about scale copies of shapes or pictures. We know that we can see if pictures are scale copies of each other by looking at the angles and shape. We know that shapes are scale copies of each other if they are multiplied ON EACH PART of the shape by the same number.
Answers to HW: 1. Figures 2 and 4 are scaled copies. Notice the same angle shapes, AND if you can draw a square around the letter like the original. Figure 1 fits inside a rectangle not a square, and figure 3 has different angles than the original. 2. Nope, sorry Tyler, but both the height AND the width have to be 1/2 the size of the original in order for it to be a scale copy. 3. Both A and D are scaled copies. B is flattened horizontally, and B is stretched vertically.
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October 2018
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