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Yuav ua li cas koj tsim ib daim qauv ntawm lub kaum sab xis nrog lub compass?
Yuav ua li cas koj tsim ib daim qauv ntawm lub kaum sab xis nrog lub compass?

Video: Yuav ua li cas koj tsim ib daim qauv ntawm lub kaum sab xis nrog lub compass?

Video: Yuav ua li cas koj tsim ib daim qauv ntawm lub kaum sab xis nrog lub compass?
Video: Yuav ua li cas thiaj khiav dim lub ntiajteb no 2024, Kaum ib hlis
Anonim

Yuav Ua Li Cas Luam Ib Lub Taub Hau Siv Lub Compass

  1. Kos ib kab ua haujlwm, l, nrog point B rau nws.
  2. Qhib koj compass rau ib lub vojvoog r, thiab tsim arc (A, r) sib tshuam ntawm ob sab ntawm lub kaum sab xis A ntawm cov ntsiab lus Sand T.
  3. Tsim arc (B, r) sib tshuam kab l ntawm somepointV.
  4. Tsim arc (S, ST).
  5. Tsim arc (V, ST) intersecting arc (B, r) atpointW.

Tsis tas li ntawd, koj yuav tsim lub kaum sab xis nrog lub compass li cas?

Tsim lub kaum sab xis 90º

  1. Kauj Ruam 1: Kos caj npab PA.
  2. Kauj Ruam 2: Muab qhov taw tes ntawm lub compass ntawm P thiab kos ib qho arcthatcuts caj npab ntawm Q.
  3. Kauj Ruam 3: Muab lub ntsiab lus ntawm lub compass ntawm Q thiab kos ib qho arcofradius PQ uas txiav cov arc kos hauv Kauj Ruam 2 ntawm R.

Ib yam li ntawd, koj ua li cas luam ib kab kab nrog lub compass? Pib nrog ib kab ntu PQ yog peb yuav luam . Kos ib point R uas yuav yog ib qho kawg ntawm qhov tshiab kab ntu . Teeb lub compasses ' point on thepoint Pof the kab ntu ua luam . Kho compasses ' dav rau qhov taw tes Q. The compasses 'widthis tam sim no sib npaug rau qhov ntev ntawm qhov kab kab PQ.

Yog li ntawd, koj yuav luam ib daim duab peb sab nrog lub compass li cas?

Thaum koj luam daim duab peb sab , lub tswv yim yog siv koj compass kom " ntsuas" qhov ntev ntawm peb sab ntawm qhov muab daim duab peb sab thiab ces makeanother daim duab peb sab nrog sab congruent rau sab ntawm theoriginal daim duab peb sab.

Lub kaum sab xis 60 degree hu li cas?

Ib lub kaum sab xis nws qhov ntsuas yog ntau tshaj 0 ° tab sis tsis tshaj 90 ° yog hu ua tus mob lub kaum sab xis . Lub kaum sab xis muaj magnitude 30 °, 40 °, 60 ° yog txhua yam mob lub kaum sab xis.

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