key basketball key officially referred free throw lane national_basketball_association nba national collegiate athletic association ncaa restricted area international governing body colloquially lane paint area basketball court underneath basket bounded foul line lines known lines usually painted courts painted critical area court action takes place game key games starting amendments rules implemented world championship rectangular prior key sanctioned tournaments basketball played outside united_states international tournaments including world championships olympics shape nba keys feet wide ncaa keys narrower feet commonly enforced rule key seconds rule player offensive team prohibited staying key seconds player team lose possession ball rule enforced lane violation players teams prohibited enter lane free throw shooter releases ball hands shooter prohibited enter key ball hits rim innovation introduction restricted area arc directly underneath basket defending player force offensive foul opposing player dimensions level play different specifications size shape key american leagues basketball court measured imperial units shape rectangular sanctioned events use metric system shape changed addition key includes free throw circle head width key nba feet including foot wide foul lanes college ncaa high school play feet beginning world championship administered tournaments use rectangular key meters wide sanctioned tournaments key narrower end free throw line meters wider end end line measured meters free throw circle foot radius centered free throw line half circle mid court free throw line painted solid lines nba boundaries half closer basket traced broken line order space players properly jump balls nba rule requires key contain inches long marks feet free throw line marks indicate called lower defensive box free throw line feet perpendicular projection face court projection feet end line nba ncaa projection center basket court perpendicular distance meters end line tournaments feet nba ncaa tournaments history originally key narrower today shape skeleton basic lock measuring feet wide key free throw circle head shaded lane body key imposing centers dominated paint scoring counter key widened feet feet onset nba season men professional basketball united_states notably national_basketball_association widened feet nba season effectiveness centers especially ncaa retains feet key day april approved rule changes included changes shape key key rectangular virtually dimensions key nba addition charge formally called restricted area arc created rules second violation lane restricted area players stay limited time levels team offensive possession ball prohibited stay inside lane seconds seconds player called second violation result turnover american professional basketball defending team prohibited staying key seconds player directly guarding offensive player player time team charged defensive second violation result technical foul team ball shoots free throw plus ball possession reset shot clock sanctioned tournaments hand defending team allowed stay key unlimited time cases count shot hits rim player steps lane lane violation player shooting free throws certain number players boundaries key occupying slot traced boundaries key cases free throw shooter free throw line opponents sides key players opponents situated nearest basket sides teammates opponents closest basket player opposing team situated basket players key opposing team allowed players arrangement nba player facing teammate basket photographs right player lane enter key shot released player shooting free throw key pass free throw line ball hits rim offensive players violate rule points awarded shot shots remaining ball given defending team defending player lane soon extra shot awarded regardless shot missed note play shooter commits violation automatic turnover shot successful shooter commit violation players commit violation violations discarded players opposing teams enter key prior release ball jump ball determine gets possession ball nba possession arrow rule levels play applies shooter misses successful attempt penalties situations lane violation penalties occur free throws awarded restricted area arc nba starting ncaa play key additional area measured arc feet basket collegiate feet basket nba meters approximately feet area officially known restricted area nba restricted area arc ncaa charge purpose stop secondary defenders taking position basket attempt draw offensive foul player driving basket offensive player drives past primary defender way basket secondary defender comes establish legal position outside draw offensive foul drive starts inside lower defensive box area tip free throw circle end line posted marks secondary defender legally allowed positioned inside restricted area apply secondary defender jumps attempting block shot offensive player leads leg knee unnatural motion uses arm prevent defender blocking shot extend player drives attempting directly rim apply restricted area arc rule implemented ncaa men basketball season ncaa approved adding visible restricted area arc feet center basket women games season panel delayed implementation arc season divisions iii allow schools time plan place restricted area arc home arenas starting season ncaa raised arc feet center basket terms points key termed points paint inside points historically area key offensive players prohibited remaining longer seconds painted distinguish area rest court phrase points paint area free throw circle point basket called key plays revolve area screens pick rolls american women collegiate basketball men point arc intersects key translate plays conducted area point field goal conversions intersection free throw line free throw lane referred elbow key
Key (basketball)