Kodi kansalu. Kodi iwo ali

popeza kuti n'zotheka kansalu, lalikulu, kyubu, sayansi limatiuza Masamu. Masiku ano izo kusukulu popanda yekha. Monga sayansi kuti amaphunzira mwachindunji kuti kansalu ndi zimene chuma chake ndi ndikuyenda. Ikufotokoza mwatsatanetsatane zochitika zonse kugwirizana ndi awa akalumikidzidwa zojambula. popeza kuti n'zotheka kansalu, tidzakambirana lero nkhani. Zotsatirazi pofotokoza mitundu, komanso ena theorems chikugwirizana ndi iwo.

Kodi kansalu? tanthauzo

Ndi lathyathyathya polygon. Iwo ali makona atatu, zikuonekeratu ku dzina lake. Komanso iwo ali mbali zitatu ndi mfundo zitatu, woyamba wa iwo - izo akutambasula, wachiwiri - mfundo. Wodziwa amene kumathandiza kupeza ngodya ziwiri ofanana, wachitatu angapezeke ndi Kuchotsera Uwerenge awiri a nambala 180.

Kodi Triangles?

Iwo akhoza wachinsinsi monga muyezo zosiyanasiyana.

Choyamba, iwo agawanika pa lakuthwa-angled, obtuse ndi anayi. Zoyambazo kumathandiza kupeza ngodya zabwino lakuthwa, kuti ndi, amene ali ndi madigiri zosakwana 90. Mu umodzi wa ngodya obtuse - obtuse, i.e. munthu amene ali ndi madigiri zoposa 90. ena awiri - pachimake. Kuti makona pachimake alinso equilateral. Triangles amenewa kumbali zonse ndipo kumathandiza kupeza ngodya zabwino ndi ofanana. Onsewo ali wofanana ndi madigiri 60, izo zikhoza masamu ndi kugawa Uwerenge kumathandiza kupeza ngodya zabwino (180) ndi atatu.

makona bwino

Sikutheka kuti ndisamangonena za zoyenera-angled makona.

Mu chithunzi ngati ngodya ndi madigiri 90 (molunjika), ndiye pali awiri a m'mbali mwake anakonza perpendicularly. Otsala ngodya ziwiri yakuthwa. Iwo akhoza kukhala ofanana, ndiye ndi isosceles makona. Ndi makona angled adalumikiza nkhani ya Lingaliro Lovomerezeka Pythagorean. Mothandizidwa ndi inu mukhoza kupeza gulu lina, podziwa woyamba awiri. Malinga ndi Lingaliro Lovomerezeka izi, ngati ife kuwonjezera m'bwalo la mwendo umodzi kuti lalikulu ena, inu mukhoza kutenga lalikulu la hypotenuse lapansi. The mwendo lalikulu kuchita masamu ndi Kuchotsera m'bwalo la hypotenuse ndi m'bwalo la mwendo wotchuka. Kusiyapo mfundo zimenezi kansalu, mungathe kukumbukira za isosceles lapansi. Zinthu zimene awiri a m'mbali komanso ofanana ndi ngodya ziwiri.

ndi mwendo ndipo hypotenuse chiyani?

Cathetus - ndi imodzi mwa mbali makona, zomwe ndi makona a madigiri 90. Hypotenuse - ndi otsala mbali kuti ndi pandunji pa mlingo woyenerera. Kuyambira mwendo wake, mukhoza kusiya ndi perpendicular. The chiŵerengero cha mwendo pafupi hypotenuse anali amatchedwa cosine, ndi zosiyana - sine.

Aigupto makona - kodi tingachidziwe bwanji?

Iye ali pomwe. Miyendo yake ndi ofanana ndi atatu ndi anayi, ndipo hypotenuse - zisanu. Ngati mukuona kuti miyendo ya makona ndi wofanana ndi zitatu kapena zinayi, dziwani kuti hypotenuse ndi wofanana ndi asanu. Komanso, mogwirizana ndi mfundo izi zikhoza anatsimikiza kuti mwendo adzakhala atatu ngati wachiwiri ndi wofanana ndi anayi, ndipo hypotenuse - zisanu. Pofuna kutsimikizira mfundo imeneyi, tikhoza kugwiritsa ntchito Lingaliro Lovomerezeka Pythagorean. Ngati cathetus ziwiri 3 ndi 4, ndiye 9 + 16 = 25, muzu 25 - 5, i.e. hypotenuse liri 5. Komanso Aigupto otchedwa makona amakona anayi amene adzamenyane ndi wofanana 6, 8 ndi 10; 9, 12 ndi 15, ndipo ena chiwerengero alionse 3: 4: 5.

Kodi ukhoza kukhala kansalu?

Komanso Triangles akhoza lolembedwa ndi anafotokoza. Chithunzi padziko limene limafotokoza bwalo alembedwa otchedwa, onse mfundo zake mfundo atagona pa bwalo. The makona - ina imene bwalo alembedwa. mbali yake kunadza mu kukhudzana ndi izo pa mfundo zina.

Kodi m'dera la makona?

M'dera la mawonekedwe aliyense amayezedwa mayunitsi lalikulu (sq. Mamita, sq. Millimeters, sq. Masentimita sq. Decimeters ndi T. D.) Khalidwe limeneli kuchita masamu m'njira zosiyanasiyana, malingana ndi mtundu wa makona. Area chilichonse mawonekedwe ndi ngodya angapezeke ndi kuchulukitsa mbali mu perpendicular pa izo ku mbali zosiyana, n'kuduladula chithunzi ichi ndi awiri. Mungapezeponso mtengo uwu ndi kuchulukitsa mbali ziwiri. Ndiye kuchulukitsa chiwerengero kuti ndi sine ya njingayo ili pakati pa zipani, muchigawane nawo awiri. Kudziwa mbali zonse za makona, koma asakudziwa m'makona ake, mungapeze ina mwa njira ina. Kuchita izi, inu muyenera kupeza hafu ya wozungulira lapansi. Kenako ukadzipatule kwa kuchotsapo nambala iyi a madera osiyana, ndi kuchulukitsa mfundo zinayi analandira. Mutakumananso, pezani muzu lalikulu la nambala imene anatuluka. Area alembedwa makona angapezeke ndi kuchulukitsa kumbali zonse, ndi kugawa nambala kuti ndi utali wozungulira bwalo anafotokoza mozungulira icho, kuchulukitsa ndi anayi.

M'dera la makona likutchedwa motere: theka la wozungulira chidachuluka ndi utali wozungulira bwalo lomwe linalembedwa mmenemo. Ngati makona ndi equilateral, malo ake tingawapeze motere: mbali squaring, kuchulukitsa chifukwa chithunzi ndi muzu lalikulu atatu, ndiye gawani nambala kuti ndi anayi. Mofananamo, mukhoza kudziwa kutalika kwa makona, imene mbali zonse zimakhala zofanana, kuti mmodzi mwa iwo ayenera kuchulukitsa ndi muzu lalikulu la zitatu, kenako gawani nambala iyi ndi awiri.

Theorems zokhudzana ndi makona ya

The theorems zofunika zokhudza chithunzi ichi ndi Pythagorean Lingaliro Lovomerezeka monga tafotokozazi, ndi Lingaliro Lovomerezeka la sines ndi cosines. The chachiwiri (sine) kuti ngati mbali iliyonse kugawidwa ndi sine a mbali zosiyana kwa izo, n'zotheka kulandira utali wozungulira bwalo anafotokoza mozungulira icho, kuchulukitsa ndi awiri. Wachitatu (cosine) ndi kuti, ngati Uwerenge mabwalo a m'mbali awiri kuti iwo kuti tinachita kawiri pa cosine ya njingayo ndipo lili pakati pa awiri, inu mumatenga mbali yachitatu ya lalikulu.

Dali Triangle - ndichiyani?

Anthu ambiri akakumana ndi lingaliro ili, poyamba ankaganiza kuti zinali mtundu wina wa tanthauzo mu masamu, koma si choncho. Dali Triangle - ndi dzina wamba malo atatu kuti ukudalira moyo wa wojambula wotchuka. "Top" ndi nyumba kumene Salvador Dali ankakhala m'linga, chimene anapatsa mkazi wake, komanso Museum wa zojambula surrealist. Paulendo malo awa mukhoza mfundo zambiri zochititsa chidwi za mtundu uwu wojambula kulenga, wotchuka padziko lonse.