Solution:
Let r be the radius of the new circle, then
Therefore, the radius of the new circle is 81.3 cm.So, option 2 is correct.
MathematicsA sector is cut from a circular sheet of radius 100 cm, the angle of the sector being 240°. If another circle of the area same as the sector is formed, the radius of the circle of the new radius is
A sector is cut from a circular sheet of radius 100 cm, the angle of the sector being 240°. If another circle of the area same as the sector is formed, the radius of the circle of the new radius is
Let r be the radius of the new circle, then Therefore, the radius of the new circle is 81.3 cm.So, option 2 is correct.
