Tuesday, 18 March 2014

LENGTH OF ARC B5



Find the length of an arc if the radius of the circle is 36cm.

Solution

L = ∏r                but r = 36cm
      1800

L = ∏ x  36
             1800

L = ∏ cm
      5

Hence length of an arc is ∏/5 cm


TRY THIS……………………

Find the length of an arc if the radius of the circle is 45mm.

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