Today in class students reinforced their definitions of the structures of circles and that circumference/ diameter is equal to pi (3.14) the constant of proportionality.
Answers to HW: 1a. You should label the Ferris wheel with an 80 m diameter. b. 80 (3.14) = about 251 m. The gondola the riders sit in looks a little further out than the diameter, but this is close. 2a. Radius; diameter: 10 in, circumference: about 31 in b. Diameter; radius: 1.9 cm, circumference: about 12 cm c. Diameter; radius: 7 ft, circumference: about 44 ft d. Circumference; diameter: about 24 ft, radius: about 12 ft e. Radius; diameter: 14 in, circumference: about 44 in f. Diameter; radius: 5 cm, circumference: about 31 cm g. Circumference; diameter: about 60 mm, radius: about 30 mm h. Radius; diameter: 120 mm, circumference: about 380 mm 3. The two sides of the triangle each contribute 12 units and the semi-circle has a perimeter of 6 ⋅ π or about 18.84 units. So 12 + 12 + 18.84 = 42.84 units 4. Circle B is bigger. There are 12 inches in 1 foot. The circumference of Circle A is about 95.8 cm because 1 ft ⋅ 12 in ⋅ 2.54 cm ⋅ π ≈ 95.8. The circumference of Circle B is 100 cm because there are 100 cm in 1 m. 5. 72/ 3.14 = about 23 inches
5 Comments
10/6/2022 01:37:03 am
instagram'da ucuz takipçi satın alma seçeneği ile çok kolay bir şekilde hesap oluşturmak mümkün hale geliyor. Zamandan tasarruf ederek bu avantajlardan yararlanabilirsiniz.
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10/7/2022 07:06:52 am
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