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Problem Solving

Problem Solving. The Area of a Circle. Review. Review. Crop Circles. Manuel and Matthias decide to create a crop circle design in their father’s farm field. The biggest circle has a diameter of 16m. The smallest circle has a diameter one fourth the size of the biggest

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Problem Solving

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  1. Problem Solving The Area of a Circle

  2. Review

  3. Review

  4. Crop Circles • Manuel and Matthias decide to create a crop circle design in their father’s farm field. • The biggest circle has a diameter of 16m. • The smallest circle has a diameter one fourth the size of the biggest • How much greater is the area of the biggest circle?

  5. The Sprinkler • A water sprinkler can spray water at a maximum distance of 12 m in all directions. What area of the garden can this sprinkler irrigate? round your answer to the nearest square meter.

  6. The Garden • A circular garden with a radius of 10 meters is surrounded by a walkway of width 1 meter. Find the area of the walkway (shaded part).

  7. The Pizza • A circular pizza costs $19.99. What is the cost of 1 square centimetre if the diameter of the pizza is 36 cm?

  8. The Intermission Challenge • Boston College is hosting an intermission challenge. A person shoots a puck from center ice and if it goes through the hole, he or she wins a million dollars. • If the area of the puck is 18 cm squared, how big will they need to make the hole?

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