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Lauren has designed a small oval racetrack for her remote control car. Her design is shown in the following figure. She has two curves, each of which is half of a circle. She also has two straight-aways that she wants to connect to the circles. The curves are on a radius of fifteen inches and the straight-aways are forty-six inches long. What is the total distance around the track? Round your answer to the nearest whole inch.
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| 2. |
* This is a pre-made sheet.
Use the link at the top of the page for a printable page. |
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| 3. |
A new crop circle has appeared in Cool Town. It is a rather simple one. It consists of two concentric circles. The largest (outer) circle has a radius of fifty-two meters and the inner circle has a radius of twenty-five meters. What is the difference between the perimeters of the circles?
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| 4. |
If the perimeter of an equiangular triangle is 66 centimeters, what is the length of one of its sides?
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| 5. |
Farmer Bob is considering buying a new field that is next to one he already owns. The field he is considering is a perfect square. The fence along each side of this square field is made of old logs and is one-fourth of a mile long. If he can walk at a rate of two miles per hour, how long will it take him to inspect the fence all the way around this field?
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| 6. |
Anna is painting around the edge of a craft item that she is making. It is a circular piece of wood on which she has painted some farm scenery. If she finishes painting around the edge in nine minutes and she paints at a speed of two inches per minute, what is the diameter of the circular piece of wood? Round your answer to the nearest tenth of an inch.
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