Geometry| Quiz 1| Transformations and Congruence Name ________________ Date____________ MAFS.912.G-­‐CO.1.1 1. Which of the following are NOT considered undefined terms? Ans (b,c,d,f) a. plane b. angle c. line segment d. ray e. point f. coplanar g. line 2. Which of the following is represented by the diagram. Ans (d) a.
b.
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d.
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G,F,B are collinear !GEA is a right angle !GEF and !FEB are a linear pair !CEH is an obtuse angle !!!"
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HE and EH are opposite rays MAFS.912.G-­‐CO.1.2 Use the table below to write the translation rule 3. for the x-­‐coordinate for the image (x _____, Ans (-­‐6) 4. for the y-­‐coordinate for the image , y _____) Ans (+2) Preimage Image (!
, !) (x,y) (3,4) (-­‐3,5) (5,1) (-­‐1,3) (1,1) (5,3) MAFS.912.G-­‐CO.1.2, MAFS.912.G-­‐CO.1.4 5. Name the transformation and rule performed in the diagram below. Ans (d) a. Translation (x,y) → (x+6, y+1) b.
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Rotation 90° counterclockwise Reflected across line y=2 Reflected across line x =2 Translation (x,y) → (x-­‐6, y-­‐1) Rotation 90° clockwise 6. Name the transformation and rule performed in the diagram below. Ans (a) a. Translation (x,y) → (x+6, y+1) b.
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Rotation90°counterclockwise Reflected across line y=2 Reflected across line x =2 Translation (x,y) → (x-­‐6, y-­‐1) Rotation 90° clockwise MAFS.912.G-­‐CO.1.3,MAFS.912.G-­‐CO.1.5, MAFS.912.G-­‐CO.2.6 Using the graph below for questions 7 and 8. 7. What would be the y-­‐coordinate of point J that would make ABCD ≅ GHIJ? Ans (-­‐2) 8. Which sequence of transformations that would make the 2 figures congruent? Ans (b) a. Reflection across line x=1 → <5, 0> b. Reflection across line y=1 → <5, 0> c. Reflection across line x=1 → <-­‐5, 0> d. Reflection across line y=1 → <-­‐5, 0> MAFS.912.G-­‐CO.2.6 9. The given figures are congruent. True or False Ans (True) 10. The given figures are congruent. True or False Ans (False)