1.

The area of circle is 1386msq find circumference

Answer»

AREA of CIRCLE = πr^2

1386 = πr^2

r^2 = 1386/π

r = √1386/π

so CIRCUMFERENCE is

2πr = 2 * π *√1386/π

= 2*3.14*√1386/3.14

= 6.28. * 21

= 131.9



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