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28 Oct 2019, 22:07
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What is the ratio of the perimeter of a pentagon with each side of length 6 to the perimeter of an octagon with side of length 6?
(A) 5/6
(B) 4/5
(C) 3/4
(D) 2/3
(E) 5/8
(A) 5/6
(B) 4/5
(C) 3/4
(D) 2/3
(E) 5/8
28 Oct 2019, 22:14
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Bunuel
What is the ratio of the perimeter of a pentagon with each side of length 6 to the perimeter of an octagon with side of length 6?
(A) 5/6
(B) 4/5
(C) 3/4
(D) 2/3
(E) 5/8
(A) 5/6
(B) 4/5
(C) 3/4
(D) 2/3
(E) 5/8
Asked: What is the ratio of the perimeter of a pentagon with each side of length 6 to the perimeter of an octagon with side of length 6?
Perimeter of a pentagon with each side of length 6 = 5*6 = 30
Perimeter of a Octagon with each side of length 6 = 8*6 = 48
Ratio of the perimeter of a pentagon with each side of length 6 to the perimeter of an octagon with side of length 6 = 30:48 = 5:8
IMO E
28 Oct 2019, 23:41
Kudos
Bookmarks
Bunuel
What is the ratio of the perimeter of a pentagon with each side of length 6 to the perimeter of an octagon with side of length 6?
(A) 5/6
(B) 4/5
(C) 3/4
(D) 2/3
(E) 5/8
(A) 5/6
(B) 4/5
(C) 3/4
(D) 2/3
(E) 5/8
Pentagon perimeter : 5 sides * Length of each side
Octagon perimeter : 8 sides * Length of each side
Required ration : 5*6/8*6
5/8 (E)
