MAT 140 Quiz: Unit_07_Transformational_Geometry_-quiz
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Lesson 1: transformations: draw an equilateral triangle on triangular dot paper, draw a mirror line. Explain: draw an irregular figure on grid paper. Choose a point inside the figure to be the turn centre. Draw the image of the figure after a rotation 90 clockwise. Translate the figure 1 square left and 5 squares down. Rotate the translation image 90 counterclockwise about (4, 1). Draw lines to divide this figure into 4 congruent polygons. Lesson 5: line symmetry: add squares so this figure has 2 lines of symmetry. How did you decide where to add the squares: use triangular dot paper. Draw a design with 3 lines of symmetry. How do you know: a regular polygon has rotational symmetry of order 20. You will need pattern blocks and triangular dot paper. Use blue rhombuses and red trapezoids to make a tiling pattern. Explain how you could use transformations to make your pattern.
