Answer:
220 m
Explanation:
Circumference of a circle = 2πr
Area of a circle = πr²
=>3850 = 22/7 x r²
=> 3850 × 7/22 = r²
=> 175 x 7 = r²
=> 1225 = r²
=>√1225 = r
=> 35m = r
Circumference of a circle = 2πr = 2 x 22/7 x 35 = 220m
The circumference of the circle is 220m.
Hope you understood!!