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BDD ~BDBx@  DT ???        ????@ 8888 888888888;888          >::>99>>99;; >>::88::88>>99;;99;;99;;99;;>>::88::88>>99;;9>;;99;;9>;;>55,55,",55,"@# # <@_y\\\]\yz]Czz z z\ X![! @P!!0  K SR P"5":A.Cowley Apr.1983 23613=\+256*23614>\,0:23613=\+1+256*23614>\,0:ٰ"9":"1":ڰ"1":"0","0";" STOP TAPE & press ENTER ":"0":"24" "200" "98","167":"59","0":"0","11";" HI THERE ";"19","9";" Geometry 4 ":"73","24":"103","0":"0","-9":"-103","0":"9000" q"5":qu="0":ٰ"9":o$=" ":a$="":p$(3,17):u="0":v="0":"300" P@i=(*3)+"1":"10","0";:j="1"̰"3":i>"3"i="1" U i=ak=j Wj;". ";p$(i):i=i+"1":j `"14","0";" PRESS KEY  1  TO  3 ":0,64@:167,0:0,557:167,0:0:q$=:q$<491ůq$>51396` iy"13","0";o$;o$;o$;"14","7";"YOUR ANSWER No. ";q$:"48","68":"152","0":"0","-16":"-152","0":"0","16" lq$=k"116" md"16","0";" SORRY  Correct answer is no. ";k:"0","48":"55","0":"0","39":"55","0" nAv=v+"1":װ".5","-10":װ"1.5","-20":"19","0";a$::"120" t9۰"1":"17","8";" * WELL DONE * ":۰"0":u=u+"1" w<װ".2","2":װ".2","2":װ".2","4":װ".2","4":װ".5","9" xV"19","0";a$:a$="":"9000":"3":ڰ"3"::"3","7";;" TOTAL CORRECT:  ";u y"6","7";" TOTAL INCORRECT: ";v:"56","152":"135","0":"56","143":"135","0":"56","128":"135","0":"56","119":"135","0":122z+qu z"9000":ڰ"5":"5":: }H"16","6";"MORE EXAMPLES? y OR n":"0":q$=:q$"y"q$"n""125" q$="y""5":ڰ"5":: "200":"0","14";" END ";"21","9";"Press any key":"112","175":"40","0":"0","-8":"-40","0":"0","8":0:"6" Jٰ"2":ڰ"7":"7"::"98","126":"60","-60":"98","66":"60","60" ^30,-30,-:-30,-30,-:-30,-30,-:-30,30,- ѡ-30,30,-:30,30,-:30,30,-:30,-30,-:9 :9 ,14;"ROSE";10 ,12 ;"SOFTWARE": ,ڰ"5"::"900":"910":"2","0";"The angle between";"4","0";"the radius of";"6","0";"a circle and a";"8","0";"tangent is ALWAYS ?" /Lp$(1)="90":p$(2)="180":p$(3)="45":a=1:"80" J"900":"920":"930":"7","25";"y";"3","26";"z";"2","0";"y is the angle";"4","0";"at the centre";"6","0";"of the circle";"8","0";" SO:" MFp$(1)="y=2z":p$(2)="z=2y":p$(3)="y+z=90":"80" hE"900":"920":"940":ް"1":"3","26";"z";"3","22";"y":ް"0" k{"2","0";"What is always";"4","0";"true for";"6","0";"y and z?":p$(1)="y=z":p$(2)="yXz=360":"80" 9"900":"920":"950":"3","26";"z";"9","25";"y" q"2","0";"y and z are";"4","0";"opposite s in a";"6","0";"cyclic quadrilateral";"8","0";" SO: " Jp$(1)="y+z=180":p$(2)="y-z=90":p$(3)="y=2z":"80" B"900":"960":"0","25";"A";"11","25";"C";"9","29";"B" "3","0";"AC is a diameter";"6","0";" SO: ":p$(1)="ABC=90":p$(2)="ABC is isosceles":p$(3)="CAB=BCA":80P g"970":"940":"920":"-56","-4":"9","20";"C";"3","26";"z";"1","21";"A";"8","29";"B" s"222","112":-2,-6,/2:i=((*6)+2)*10 :"9","28";"^";"10","28";i;"" M"2","0";"AB is a diameter";"4","0";"and ABC=";i;"";"7","0";"z=?" նp$(1)=(90Z-i)+"":p$(2)=i+"":p$(3)=(i+20)+"":a$=" ACB=90 (angle in semi-circle) SO CAB="+(90Z-i)+" (180 in ABC) = z ":80P K"970":"940":"174","156":"-14","12.5":"174","102":"28","28" "5","25";"O";"0","22";"A";"9","29";"B";"9","20";"C";ް"1";"6","25";"z":ް"0":"170","160":"4",-14,/2 }i=((*7)+11 )*10 :"2","17";i;"";"3","0";"AOB is a";"5","0";"diameter";"8","0";" SO  z=?" p$(1)=(360h-2*i)+"":p$(2)=(i/2)+"":p$(3)=(i-40()+"":a$="CAB=180-"+i+" SO z=2X"+(180-i)+" ( atcentre=twice at circumference)":80P i=((*6)+2)*10 :"980"::"960":ް"1":"3","25";"z";"0","25";"A";"11","24";"C";"8","30";"B":ް"0" V"2","0";"AC is a diameter";"4","0";"TC is a tangent";"7","0";" SO  z=?" p$(1)=i+"":p$(2)=(90Z-i)+"":p$(3)=(i+20)+"":a$="TCA=90( between radius & tgt)and ABC=90 ( in semi-circle) ":80P ;i=((*4)+2)*10 :"920":"950":"980" j=((*4)+6)*10 :ް"1":"11","23";"^";"12","23";"z";"11","20";"S";"4","25";j:ް"0":"190","96":-2,-6, "2","0";"ST is a";"4","0";"tangent.";"7","0";"z=?":p$(1)=(j-i)+"":p$(2)=(100d-i)+"":p$(3)=(j-45-)+"":a$="SUM OF OPP.s OF CYCLIC QUAD=180":80P 0"990":"0","0";" THE ALTERNATE ";1,0;" SEGMENT THEOREM ";"9","20";"B";"7","21";"z";"7","27";"z":"224","107":4,4,- 9"14","0";"The angle z between a chord AB",,,"and a tangent is equal to the",,,"angle z in the alternate segment":9000(# N"995":"950":"11","25";"C";"5","18";"T";"9","20";"D";"2","0";"DAB=";i;"";"4","0";"What is the";"6","0";"value of BDT?" Wp$(1)=(180-i)+"":p$(2)=(195-i)+"":p$(3)=(90Z+i)+"":a$=" BCD=180-"+i+" (opp.s in cyclic quad.) BDT=BCD (alt.seg.th.)":80P Xf"995":"149","130":"-24","28":"104","-50":"9","20";"C";"1","16";"T";"12","24";"S" [j=(*9 )+"10":"218","112":0,-6,/2:ް"1":"10","27";"^";"11","27";j;"";"3","17";"?":ް"0" ^"2","0";"CAB=";i;"";"4","0";"TBC=";j;"";"6","0";" SO  CTB=?":p$(1)=(i-j)+"":p$(2)=(90Z-j)+"":p$(3)=(i-j+5)+"" aSa$=" BCS=CAB="+i+" (alt.seg.th.) SO TCB=180-"+i+" & s in TCB=180" dqu="1":"80":"460" &" REVISION QUESTIONS ":"905": "200,128,12 *: ["248","90":"-88","0":"11","25";"T";"5","25";"O":"202","126":"0","-36": ,"174","102":"40","61":"16","-56": ,"174","102":"27","26":"29","-22": +"174","102":"0","54":"56","-50": ,"174","102":"27","-10":"30","15": 8"200","91":"30","16":"-30","58":"0","-74": N" EXERCISE ":"0","175":"79","0":"0","168":"79","0":"905": "970":"248","90":"-80","0":"212","96":2,-6,-::"11","30";"T";"11","26";"^";"12","26";i;"": ކ"905":"920":"0","26";"A":"174","102":"56","5":"149","130":"48","-56":"170","107":6,1,-/2: "970":"990":2,-5,-/2:i=((*7)+2)*10 :"210","156":6,0,/2:"1","28";"<-";i;"8","30";"B": #("""9000" #+,"21","9";"Press any key":="""9003" #."""9006" #1װ".05","4":: uvaiPkQ1O A890 180 45 "" 0  n]  :33z3z3z zz z3z z3,'66M zzP=v> P P P 88 MWV^GWq !v>>BB<DHpHDB@~BfZBBBBbRJFB