The area of a circular field is 13.86 m². Find the circumference of the field.(Take π=22\7
Answers
Answered by
11
Answer:
13.2 m
Step-by-step explanation:
Area = πr² = 13.86 m²
=> 22/7*r² = 13.86
=> r² = 13.86 ÷ 22/7
=> r² = (13.86*7)/22 (Dividing by a number is the same as multiplying by its reciprocal)
=> r² = 4.41
∴ r = √4.41 => 2.1 m
Circumference = 2πr
=> 2*(22/7)*2.1
=> 13.2 m
Thus, the circumference of a circle with area 13.86 m² is 13.2 m.
Similar questions