a circle has a diameter of 14 ft. if the area is tripled what happens to the circumference

a circle has a diameter of 14 ft. if the area is tripled what happens to the circumference
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1 Answer

rim-leng=pi* diameter or 2pi*radius

area=pi*rad*rad

if area2=3*area1, then rad2=root(3)*area1 or bout  1.7320508 * rad1

thus, rim-leng 2=1.7320508*rim-leng1
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