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Circumference of the circle with center O
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Updated on: 14 Apr 2020, 08:16
Updated on: 14 Apr 2020, 08:16
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Question Stats:
63% (00:59) correct
36% (00:57) wrong based on 173 sessions
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Quantity A |
Quantity B |
Circumference of the circle with center O |
Sum of the lengths of chords AB, CD, and EF |
A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
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Re: Circumference of the circle with center O
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14 Apr 2020, 06:01
14 Apr 2020, 06:01
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lets consider radius is 4= so diameter is 8. [u]diameter is the largest chord in a circle and it passes through the centre of the circle. under this rule, the circumference is 8*3.14=25.12
now as ab is the is the diameter , it will be 8 and other two chords must be less than diameter. we can use 7.99 as the length of each small chords.
so 7.9+7.9+8=23.8
hence A is greater
now as ab is the is the diameter , it will be 8 and other two chords must be less than diameter. we can use 7.99 as the length of each small chords.
so 7.9+7.9+8=23.8
hence A is greater
Re: Circumference of the circle with center O
[#permalink]
14 Apr 2020, 06:10
14 Apr 2020, 06:10
1
suhaibwahla wrote:
lets consider radius is 4= so diameter is 8. [u]diameter is the largest chord in a circle and it passes through the centre of the circle. under this rule, the circumference is 8*3.14=25.12
now as ab is the is the diameter , it will be 8 and other two chords must be less than diameter. we can use 7.99 as the length of each small chords.
so 7.9+7.9+8=23.8
hence A is greater
now as ab is the is the diameter , it will be 8 and other two chords must be less than diameter. we can use 7.99 as the length of each small chords.
so 7.9+7.9+8=23.8
hence A is greater
Thank you for your perfect explanation!!
However, when it says "lengths of chords", does not it mean curved line length? not straight line?
