)v# capm"67.;'e4q h@7F! ! !  " " 3" F" Y" l"(--Screen students saw as they entered class. E was moving back and forth along AB. Altitude EF moved with E, remaining constant. The lengths of segments CE and DE changed as E moved.ƀpg0g ,11 h@7FA(;AOVy(ClC0  h@7FBxw(CCw ! && h@7FC0%B&&-&5&D&D\&(CC FZJ( h@7F' '' <( Z [F(N( EV( E(t(zFigure 1`@HXHH  ,11#  h@7Fj ao{   !6!(ClC0CCw?\,* h@7Fkz((k(-m( ) O) Z)t(CCCC@?W\>6 h@7F E2 ,Gʛ2 !`r%!2 0,-. $(CXCMIN?  h@7F D2 ,Gʛ2 !`r%!2 0,-. $(C:C  &\7H  h@7Fm)5`5}5,6V6v66(CXCMCC?+:O h@7Fo{5O+ 6YS 6> 8u ^/t. 8:7t 2C7O+ 6[Q(CB2CC?-$s h@7FAnimate(\, h@7Fq2sucSans Italic^?< "(CCC:C?   N0   h@7Fl $E/ $O/ WU/ -d $/ "/ "/ E/G(CCC:C? VN  h@7Fns::R<;Q;]q;3;<&<]L<(C:CCXCM?  L8r+O  h@7Fp17F&T7&T7XO+T7u^/t>_/u XO+fcF7(?C:CCXCMCC  2 h@7FtWFW o' (CjCCFC;? .<3AO胚 h@7FFGB##"2 0,-. $(CC j h@7Fm1++^+N;} 6O+q{O+VWt.u ,H; ><;t6(F m {S:CD} = .;' ;'LoPL@8h@8@( 8,- F8 a sav9>F8./ H 8U@ sav F89l nt b aLoPt bLoPLnh@8 LTg>LL savLnK@Ln8Ln LLength(Segment CD) = 9n V H8V O2O ablH sav;h @L@0n@b wil a@K@B@..B9\K@ wil9?BD9N?BD9?BDH savm, B@ ablH;h 9199?BD sav;h :1+LM sav/pB@: LHL wil sav::0;h@+/p:@:@:`JK8::5 :/d:8;=jP P ³(.<3A2` h@7FF2 ,Gʛ2 !`r%!2 0,-. $(CC  ;3\Oߧ  h@7FpO+O+FXP7FF&T7O+T7tR77^N0(CCCXCM?;3\C  h@7Fux23C%F8./ H 8U@ sav F89l nt b aLoPt bLoPLnh@8 LTg>LL savLnK@Ln8Ln LLength(Segment EF) = 9n V H8V O2O ablH sav;h @L@0n@b wil a@K@B@..B9\K@ wil9?BD9N?BD9?BDH savm, B@ ablH;h 9199?BD sav;h :1+LM sav/pB@: LHL wil sav::0;h@+/p:@:@:`JK8::5 :/d:8;=jP P ³(1t h@7Fm6( F'{D:{(:m {S:CD}}{!:*}{(:m {S:EF}}}{2} = 8h@8@( 8,- F8 a sav9>F8./ H 8U@ sav F89l nt b aLoPt bLoPLnh@8 LTg>LL savLnK@Ln8Ln L*Length(Segment CD)*Length(Segment EF)/2 = 8V O2O ablH sav;h @L@0n@b wil a@K@B@..B9\K@ wil9?BD9N?BD9?BDH savm, B@ ablH;h 9199?BD sav;h :1+LM sav/pB@: LHL wil sav::0;h@+/p:@:@:`JK8::5 :/d:8;=jP P ³(