Find the
length of an arc if the radius of the circle is 80cm.
Solution
r = 80cm
L = ∏r
1800
L = ∏ x 80
1800
L = 4∏ cm
9
Hence length of an arc is 4∏/9 cm
TRY THIS………………….
Find the
length of an arc if the radius of the circle is 60cm.
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