Today in class students learned more about the relationship between the circumference and the diameter of circles.
Answers to HW: 1. 405 ⋅ π or about 1,272 inches (106 feet) 2. About 169 times. There are 36 inches in a yard so 10,800 inches in 300 yards and 10,800 ÷ 64 ≈ 169. 3. Circle A: radius 2.5, diameter 5, circumference 15.7 Circle B: radius 7.6, diameter 15.2, circumference 47.7 4. 4 m. If the diameter of Circle B is 112 times larger than Circle A, its circumference must be as well. We can rewrite to calculate: (83)(32) = 4. 5. a. 10 cm b. 5 cm c. CA, AF, AD, AG, AE
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October 2018
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