Find the perimeter and area of a square whose side measures 1)3point5 (3.5)2)1m 20cm
2 answers:
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Since there are 
in a circle, and central 
, you can see that the part "sliced out" by the central angle is 
of the whole circle.
This means that the length of the intercepted arc
is 
of the circumference of the circle. So,
This means that the length of the intercepted arc