Question

7. 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.​

Answer 1

Answer:

Area = πr^2 = 25 π

49 times the area=25πx49=1225π

1225π = πr^2

r^2 =1225π/π =1225

r =v1225.=35

circumference=2πr=2x22x35/7=220m