Find the
length of an arc if the radius of the circle is 20cm.
Solution
r = 20cm
L = ∏r
1800
L = ∏ x 20
1800
L = ∏ cm
9
Hence length of an arc is ∏/9 cm
TRY THIS………………….
Find the
length of an arc if the radius of the circle is 30cm.
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