Question

find the areas of circle whose circumference is as follows q. 3.5​

Answer 1

solutions

area of a circle =pi r²

22/7×35/10×35/10×22/7×22/7

=35×35×7/2200

=49/8

Answer 2

circumference=2 x 22/7 x r

=2 x 3.14 x 3.5

=21.98

=~30

area=22/7 x r^2

=38.465

=~38