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Pre/Post Test Blocks 10,11,12 Geometry: Points, Lines, Planes, and Angles 1. How many points determine a plane? Answer: 2. Find on the figure below examples of: a. Parallel lines:__________ b. Perpendicular lines:______________ c. Skew lines:____________ d. Name 4 points which are no coplanar:_________________ 3. Determine the distance between points A=(-1,4) and B=(3,4). Show your work. Answer: 4. What is general formula to calculate the midpoint of a line segment? Answer: 5. Which of the following best describe the first step in bisecting segment AB? a. From point A draw a equal arcs on CD using the same compass width b. From point A draw a equal arc above and below Ab using a compass width of 1/3 of length AB c. From point A draw a equal arc above and below Ab using a compass width greater than ½ of length AB d. From point A draw a equal arc above and below Ab using a compass width less than ½ of length AB 6. Congruent triangles have the same area. Give an example of two triangles with the same area which are not congruent? Answer: 7. List at least four methods for determining whether two triangles are congruent. Answer: 8. What are the regular polygons which could tile the plane? Explain why? Answer: