the radius of a circle is 5 m . find the circumference of the circle whose area is 49 times the area of the given circle
Answers
Answered by
111
Radius of circle =5m.
Area of given circle =22\7×r square
=22/7×5×5=550\7m square .
Area of second circle=49×area of given circle
=49×550/7=3850.
Hence area of circle =22/7×r square
3850=22/7×r square
3850×7/22=r square
1225=r square
Root 1225=r
35=r
Thus circumference =2×22/7×r
=2×22/7×35=220m
Answered by
2
Answer:
answer is 220 m this is similar to solved examples given in the book
Similar questions