Review of the Quadratic Formula |
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In this unit, some problems involve quadratic equations that may be solved by using the quadratic formula. Thus, a short review of solving quadratic equations with real roots and applying the quadratic formula is given in the first four problems. Determine the POSITIVE value of “x” for each quadratic equation. Round the answers to the nearest tenth. |
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Chord, Secant, and Tangent Relationships |
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For the activity problems in this unit, measure the segments accurately to the nearest millimeter. Note: Even with accurate measurements, there may be a little variance; therefore, after each multiplication, round the answer to the nearest whole millimeter. |
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5) Activity: Print out the circle shown below and measure segments AE, BE, CE, and DE to the nearest millimeter. Multiply the length of AE times the length of EC. Multiply the length of BE times the length of ED. True or False: (AE)(EC) = (BE)(ED) |
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6) Activity: Print the circle shown below and measure segments FJ, GJ, HJ, and IJ to the nearest millimeter. Multiply the length of FJ times the length of JH. Multiply the length of GJ times the length of IJ. True or False: (FJ)(JH) = (GJ)(IJ) |
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10) Select the BEST term for the following description: “a line that intersects a circle in exactly two points”. |
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11) Select the BEST term for the following description: “a section of a secant line that lies in the area outside of a circle”. |
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12) Select the BEST term for the following description: “a section of a secant line that intersects a circle in exactly two points”. |
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Refer to the figure below to solve the next five problems. |
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13) Select the BEST term to describe the geometric name shown below. |
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14) Select the BEST term to describe the geometric name shown below. |
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15) Select the BEST term to describe the geometric name shown below. |
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16) Select the BEST term to describe the geometric name shown below. |
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17) Select the BEST term to describe the geometric name shown below. |
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18) Activity: Print out the circle shown below and measure segments TU, TV, TW, and TX to the nearest millimeter. Multiply the length of TU times the length of TV. Multiply the length of TW times the length of TX. True or False: (TU)(TV) = (TW)(TX) |
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Refer to the figure and information given below to answer the next two questions. |
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Equations and Graphs of Circles |
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In this section, follow the example shown below when asked to write the standard equation of a circle. |
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The chart below shows the centers of five circles in a coordinate plane and the length of their radii. Determine the standard equation of each circle and then answer the next five questions. |
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In the chart shown below, the name of five circles and their corresponding equations are given. For each circle, determine the coordinates of the center of the circle in a coordinate plane and the length of the radius. Complete the chart, and then answer the next five questions. |
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Graphing Irrational Numbers |
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43) The method shown above illustrates that irrational numbers may be graphed on a number line. Which property listed below is NOT a property of irrational numbers? |
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44) Follow the given steps given below to create a circle from any three noncollinear points. Use a compass and straight edge. Describe your final drawing. |
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4000 character(s) left Your answer is too long. |
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Attachments |
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Extended Research: Check with your instructor to see if he/she is interested in awarding extra credit to you for writing a one-page report on the following research topic: Stonehenge is a site in England where huge stones were placed in a circle more than a thousand years ago. Do an Internet search and find some theories about the use of Stonehenge, who built it, and the mysteries of it. Write a one page paper about the history of Stonehenge. Include theories that illustrate that the ancient builders had a knowledge of geometry. |
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45) If you were directed by your school to complete Offline Activities for this course, please enter the information on the Log Entry form. |
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No offline activities found |
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