A student was trying to calculate the circumference of a circle with a radius of 5 ft. The student’s work is shown below. Which statement is true?
A student was trying to calculate the circumference of a circle with a radius of 5 ft. The student’s work is shown below. Which statement is true?
Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
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Question
A student was trying to calculate the circumference of a
Student’s scratch work: C = 2.5(3.14) = 7.85 in.
Group of answer choices
(A.) They calculated the circumference right because C= 7.85 in.
(B.) They did not calculate the circumference right because it should be C = 2(5)(3.14) which would make the circumference 31.4 in.
(C.) They did not calculate the circumference right because it should be C = 5(5)(3.14) which would make the circumference 78.5 in.
(D.) They did not calculate the circumference right because it should be C = 10(10)(3.14) which would make the circumference 314 in.
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