Today in class students learned that the diameter and the circumference of circles are proportionate. The constant of proportionality is 3.14.
Answers to HW: 1. Diego's flying disc measurements are way off; the circumference should be a little more than 3 times the diameter. 2. Using 3.14 for the constant of proportionality...and rounding your answers.... object diameter circumference hula hoop 35 in. 110 in. circle pond 177 ft 556 ft magnify glass 5.2 cm 16 cm car tire 22.8 in. 71.6 in. 3.a. AC, AD, AB, AE, or AG; 7.5 cm b. CD; 15 cm 4. a. plot the points on the graph b. No, the relationship is not proportional because the line does not go through the origin. 5.a. Lin - 3 cups, Noah - 4 cups b. Lin - 10 cups, Noah - 7 1/2 cups
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