8thofMarch
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#1
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#1
The length of the minor arc AB of a circle,centre O,is 2 pi cm and the length of the major arc is 22 pi cm.
Find:
a) radius of the circle
b) acute angle of the circle
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Muttley79
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#2
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#2
(Original post by 8thofMarch)
The length of the minor arc AB of a circle,centre O,is 2 pi cm.
Find:
a) radius of the circle
b) acute angle of the circle
How far have you got?
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8thofMarch
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#3
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#3
(Original post by Muttley79)
How far have you got?
Well I don't know how to do it,I only know the formula
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Muttley79
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#4
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#4
(Original post by 8thofMarch)
Well I don't know how to do it,I only know the formula
You've added a bit to the question now!

What is the circumference of the circle and how does it relate to the radius?
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8thofMarch
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#5
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#5
Um circumference is pi multiply d so......22 pi over 2?
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Muttley79
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#6
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#6
(Original post by 8thofMarch)
Um circumference is pi multiply d so......22 pi over 2?
Is the circumference of the whole circle 22 pi?
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8thofMarch
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#7
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#7
Yes?
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Muttley79
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#8
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#8
(Original post by 8thofMarch)
Yes?
That's only the major arc - so the whole circumference is?
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