Question

area of a cicle whose diameter 28​

Answer 1

Diameter =28. Radius =28/2=14. Area=pie r^2.
22/7*28
Now you can solve it further
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Answer 2

Answer:

diameter = 28 cm

radius = 14 cm

area of circle = 22/7 *14*14

=22*2*14

= 44*14

= 616cm^2