Kodi kupeza zojambula akalumikidzidwa lalikulu

Pali nambala wopandamalire wa kanjedza ndege ya mosiyanasiyana monga cholondola ndi cholakwika. Katundu wamba zidutswa zonse - aliyense wa iwo ali ndi malo. Square akalumikidzidwa - ndi kukula kwa ndege wotanganidwa ndi Chiwerengerochi, m'kukoma mayunitsi ena. Khalidwe limeneli nthawi zonse zowonetseredwa ndi nambala positive. Unit wa muyeso ndi dera lalikulu, kumbali kutalika ndi wofanana ndi chimodzi (mwachitsanzo, mita imodzi kapena centimeter wina). Zoyerekeza dera mawonekedwe aliyense akhoza kuchita masamu ndi kuchulukitsa chiwerengero cha mabwalo wagawo mu umene agawanika pa dera lalikulu limodzi.

matanthauzo ena a mfundo motere:

1. Square yosavuta akalumikidzidwa - scalar makhalidwe abwino zinthu wokhutiritsa:

- kukhala zidutswa ofanana - wofanana ndi mtengo wa m'deralo;

- ngati chithunzi ndi mbali (kanjedza yosavuta), malo ake - Uwerenge mabwalo zidutswa deta;

- apakati kukhala mbali ya wagawo, ndi malo unit.

2. Square zovuta akalumikidzidwa mawonekedwe (polygons) - makhalidwe abwino ndi katundu:

- ndi polygons ofanana - ndi makhalidwe a m'derali;

- ngati polygon ndi ochepa polygons zina ndi malo ofanana ndi Uwerenge malo otsiriza. lamulo ili amam'zindikira polygons sanali kulowererana.

Ngati analandira axiom mawu amene amayambanso m'dera (polygons) - makhalidwe abwino.

Kuona malo a bwalo wapatsidwa padera ndi zedi anafuna ndi dera la polygon zonse alembedwa bwalo la mabwalo - ngakhale kuti chiwerengero cha m'mbali mwake amamuchititsa osawerengeka.

zidutswa Square wa mawonekedwe osasamba (umasinthasintha akalumikidzidwa) alibe tanthauzo yekha anatsimikiza ndi njira zawo mawerengedwe.

Mawerengedwe a malo akale anali ndi udindo waukulu wothandiza vuto kudziwa kukula kwa dziko. Malamulo kuwerengetsa malo ochepa zaka zana BC, akhala anakonza ndi sayansi Greek ndi amafotokozedwa "Zochitika" wa Euclid monga theorems. N'zochititsa chidwi kuti malamulo kudziwa madera mosiyanasiyana kumodzi iwo - mofanana panopa. Mabwalo akalumikidzidwa zojambula kukhala mizere yokhota kumapeto, masamu ntchito malire.

The mawerengedwe a m'madera a yosavuta akalumikidzidwa (makona, rectangle, lalikulu), kuti ankadziwa zonse kusukulu, zokwanira basi. Optionally munali ngakhale kuloweza kalata mayina chilinganizo kanjedza malo. Wokwanira kukumbukira malamulo wamba ochepa:

1. kuwerengera dera lalikulu, m'pofunika kuchulukitsa mbali yaitali yokha (kapena kumanga mu mlingo wachiwiri).

2. dera rectangle ndi kuchita masamu ndi kuchulukitsa m'litali ndi m'lifupi. M'pofunika kuti m'litali ndi m'lifupi anasonyeza mu mayunitsi chomwecho.

3. dera chithunzi zovuta kuchita masamu ndi kugawa mu losavuta angapo ndipo kuwonjezera m'dera chifukwa.

4. kukula kwa rectangle ndi ukugawa mu Triangles awiri amene madera ofanana ndi ofanana hafu ya dera lake.

5. m'dera la makona ndi kuchita masamu kuti tinachita theka la msinkhu wake ndi maziko.

6. dera bwalo ndi wofanana ndi mankhwala a m'bwalo la utali wozungulira konse nambala inayake ya «π».

7. kuwerengera Malo parallelogram kuti tinachita mbali moyandikana ndi sine ya njingayo atagona pakati pawo.

8. Area wa rhombus ndi - ½ chifukwa cha kuchulukana kwa sine wa diagonals a mbali mkati.

9. dera trapezoid kupeza kuchulukitsa kutalika kwake kutalika centerline umene uli wofanana ndi zikutanthauza masamu a zapansi lapansi. chimake wina wa tanthauzo dera trapezoid ndi - awonjezere masanjidwewo opendekera ndi nkusani ngodya atagona pakati pawo.

Ana ku pulayimale, chifukwa ndi losavuta kumva, kaŵirikaŵiri amapatsidwa ntchito: kupeza m'dera kukopedwa pa akalumikidzidwa pepala ntchito pallets kapena pepala mandala wa m'mphepete pa maselo. pepala otere superimposed pa mawonekedwe mpandawo imatengedwa nambala ya maselo okwana (mayunitsi a m'dera), kuwayika iwo mu kuzungulira, kenako nambala ya chosakwanira, amene agawidwa mu theka.