document.write( "Question 355711: the figure is not at scale. \n" );
document.write( "was drawn on the figure against a sphere of center O and radius 5cm. This sphere is intersected by a plane P. It gives OI = 3 cm. \n" );
document.write( "1.) What is the nature of the section obtained? \n" );
document.write( "2.) Calculate the length IM. \n" );
document.write( "3.) Gives a value rounded to the near cm3 volume of the ball bounded by the sphere. \n" );
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