Find
the length of an arc if the radius of the circle is 40cm.
Solution
L =
∏r
1800
L =
∏ x 40
1800
L =
2∏ cm
9
Hence
length of an arc is 2∏/9
cm
TRY THIS…………………………..
Find
the length of an arc if the radius of the circle is 25cm.
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