Monday 23 March 2015

LENGTH OF AN ARC 1

Find the length of an arc if the radius of the circle is 9cm.

Solution

L = r
      1800

L = ∏ x  9
            1800

L = cm
     20
Hence length of an arc is ∏/20 cm.

TRY THIS……………


Find the length of an arc if the radius of the circle is 15cm.

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