专项训练四 巧求与圆有关的面积-2020-2021学年九年级上册初三数学【夺冠百分百】优化测试卷（人教版）

%) !!! 弥 !!!! !!! !"#$%&'(!" 789:3-HIJKLM?NO !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ! ,-./ " !( wa * yêH + Ruv ( "( wa * .voBH + Ruv ( #( wa * NëH + Ruv ( $( wa * ª¯H + Ruv ( ! 0123 " ��$ ! �; " ��0 # �st !( £t " - " : 3òu 4 q'�.Vå " K´ +,"& " \L +: " +- " :6 1 +, " MMP 6 " :6 � +- � å 7( # ' $ R ) +76 'ê: ( # ! $ R��ªV'uv # �BèG 9 �T/ $ ( ��& ! �; " Ut�a0 # �st "( £t " +, 3 4 4 'K´ " -: " 67 3 4 4 'Ð " < +, / -: / 67 " +,"'$ " -:"/ " 67"1( Rt� ��ªV'uv ( ��H ! �; " ��0 # �st #( £t " 07òu� " �P & 'Ð +, ^K´ -: N{<^üòu�× " Rt���ªV'uv ( ��� ! �; "  ¡0 # �st $( £t " +, P 4 4 'K´ " +,"+- " ,- � 4 4 �å : " +- � 4 4 �å 6( # ' $ R� ! ,:"-:( # ! $ W +,"1 " ) ,+-"&04 " R��ªV'uv ( ! 45(+ " !( ! !$') ~�#$ " £t " äò´P / ' 4 4 � " å + " , " - 2ä 4 4 q " }1B 4+,- 3N{}1 B " Xt���ªV'uvP # !! $ *+/ 9 槡,+( (9 槡-+! (9 .+!9 ! _ ' ) " !!!! ! _ ! ) " !!!! ! _ ( ) " "( ! !$') DG#$ " £t " ä ?@ ( +,- � " ) +,-")$4 " +, 槡"! (",-"!"�+,'�å4 Pu.& 4+ '�Pò´yòu� +- �å : " Xt���ªV'uvP # !! $ *+ 槡0 ( & % 9 ! ,+ 槡0 ( & # 9 ! 槡-+! (%9 槡.+& (% 9 ! #( £t " ä ?@ ( +,- � " ) +-,")$4 " +-",-"' " ¤ ?@ ( +,- rå + �\�q» ($4 �ñG ?@ ( +:6 " å , ��'Þ´P 0 ,: " Xt���ªV'uv3 # !! $ *( 9 / ,( 9 ( -( 9 ! % ' ! .( ' ! $( £t " äò´P & ' 4 4 � " -: 3K´ " +, 3Ð " < -: 1 +, " MMP 6 " ) +4,")$4 " X��ª V'uv3 # !! $ *(& 9 %& ,(! 9 %& -(& 9 .(! 9 ! _ & ) " !!!! ! _ 0 ) " %( £t " å - 3� +, PK´'òu 4 '�.Vå " +-"! " Xt���ªV'uv3 # !! $ *( & 9 ( 槡% ( ,( & 9 ( 槡%! ( -( ! 9 ( 槡% ( .( ! 9 ( % 槡( ! &( £t " �9 +, 3 4 4 'K´ " å - " : ä 4 4 q " ) :"/$4 < +,"/ " � 4 åy 46 1 +- " MM P 6( # ' $ R 46 '� ( # ! $ W 46 '¡�»� 4 4 �å 7 " RÐ +7 " +- �Ñ -7 û�'tB # ��ªV $ 'uv <( &* $$ 书书书 !" !"# ! $ "# #$ !!! ! ! " ! # ! $ !"#$%&'( ! &')* " ! %& !" !" ! "#""$#$ ! ! " $ " !# %#& # ! %'槡 !$ !! !$ $ % $ !& '() !' () !( * !) % # ! !* $ ! ! +,-. " !%( ! ")( ! #%* ! $%+ ! %%" , #, $ " ! #! ! &%,- + !, + !. '% ! , " " , #%/ $ " ! #% 0 / ! ! ! " " , # 槡 槡!" '! ' $ " ! # 槡 槡!% '! ' ! . " " , #! $ " ! #* ! ! ' " " , 槡#." ,'$"! 槡#.% ,' ()+ ! ))+ ! !*)+ !!% / # 1 !" "