Top 10k strings from O'Level Maths Revision - Geometry 5 (1983)(Rose Software)(16k).z80 in <root> / bin / z80 / software / Sinclair Spectrum Collection TOSEC.exe / Sinclair ZX Spectrum - Utilities & Educational / Sinclair ZX Spectrum - Utilities & Educational - [Z80] (TOSEC-v2007-01-01) /

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   2 "9";"Press any key":
   2 "0";"The radius of the";
   1 k+"   =OPxOQ=OPx(OP+"+
   1 j;". ";p$(i):
   1 i+"=2x6  so PN="+
   1 MORE EXAMPLES? y OR n":
   1 Geometry  5 
   1 >::88::88>>99;;9>;;99;;9>;;>
   1 >::88::88>>99;;99;;99;;99;;>
   1 =OPxOQ  SO "+
   1 ;"SOFTWARE
   1 /i)+"  and OT
   1 )="y+z=180":
   1 )="OT=OS":
   1 )="OT=2 x radius":
   1 )="OT+OS=2x
   1 )="OP=half radius":
   1 )="OP = AP":
   1 )="90+y=z":
   1 )+"x("+p$(2
   1 )+"+2r)   
   1 "7";"YOUR ANSWER No. ";q$:
   1 "4";"FOR AN";
   1 "1";"INTERSECTING":
   1 "1";"INTERNAL POINT";
   1 "0";o$;o$;
   1 "0";"true that:-"
   1 "0";"then it is";
   1 "0";"smaller circle";
   1 "0";"larger circle";
   1 "0";"centre P = ";i/2
   1 "0";"centre O = ";i;"cm."
   1 "0";"are tangents.";
   1 "0";"and OP=";5
   1 "0";"OT and OS";
   1 "0";"OP = ?"
   1 "0";"NQ=";i;"cm":
   1 "0";"If AP=PB";
   1 "0";"If  OT=";4
   1 "0";"C is the centre";
   1 "0";"    STOP TAPE & press ENTER
   1 " CHORD THEOREM":
   1  perpendicular bisector of AB 
   1  of cyclic quad.   SO 
   1  cyclic  quad. 
   1  TOTAL INCORRECT: ";v:
   1  THEN opp.
   1  SO CS=r="+p$(1
   1  SINCE OP = OT - PT = "+
   1  REVISION QUESTION 
   1  PRESS KEY 
   1  POINT ARE EQUAL IN LENGTH   
   1  PN x NQ = RN x NS 
   1  OP is called the 
   1  OP X OQ = OR X OS = OT
   1  OF A CYCLIC QUAD. = THE INTERIOR OPPOSITE ANGLE  
   1  EXERCISE 
   1  Correct answer is no. ";k:
   1  Always:- 
   1  AN EXTERIOR 
   1  * WELL DONE * 
   1  (vert.opp.
   1   TOTAL CORRECT:  ";u
   1     TANGENTS FROM AN EXTERNAL