a wire is in the form of a rectangle 18.7 cm long and 14.3 cm wide. If this wire is reshaped and bent in the form of circle, find the radius and the area of the circle so formed.
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hey friend
here is your answer
perimeter of the rectangle =2 (18.7+14.3)=2×33=66 cm
circumference of the circle =66 cm
2×22×r/7=66
r=66×7/2×22
r=21/2=10.5 cm
area=22×r×r/7=22×10.5×10.5/7=2425.5/7
=346.5 cm sq.
here is your answer
perimeter of the rectangle =2 (18.7+14.3)=2×33=66 cm
circumference of the circle =66 cm
2×22×r/7=66
r=66×7/2×22
r=21/2=10.5 cm
area=22×r×r/7=22×10.5×10.5/7=2425.5/7
=346.5 cm sq.
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