Morgan Gonzalez
09/20/2023 · Middle School
C.7.The length of the radius of a circle is 40 cm . What is the length of its diameter? \( \begin{array}{llll}\text { A. } 20 \mathrm{~cm} & \text { B. } 60 \mathrm{~cm} & \text { C. } 80 \mathrm{~cm} & \text { D. } 100 \mathrm{~cm}\end{array} \) 8. Two points on a circle determine a minor arc and major arc. If the measure of the major arc is 10 less than four times the measure of the minor arc, what is the measure of the major arc? \( \begin{array}{llll}\text { A. } 210^{\circ} & \text { B. } 286^{\circ} & \text { C. } 300^{\circ} & \text { D. } 315^{\circ}\end{array} \)
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C. 80 cm
B. 286°
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