Nharaunda rhombus: Masvomhu uye mashoko

Rhombus (kubva muchiGiriki uye Latin ῥόμβος rombus «Drum") riri parallelogram, iyo inozivikanwa nokuvapo zvakaenzana urefu mativi. In Kana apo pamakona vari 90 madhigirii (kana kurudyi pamakona) geometric Nhamba yakadaro inonzi dzakaenzana. Rhombus - a geometric mufananidzo, rudzi quadrangles. Zvingava sikweya, uye parallelogram.

Kwakatangira rokuti

Ngatimbotaura zvishoma nezvenhoroondo nhamba, izvo zvichabatsira zvishoma Muchifukura chakavanzika zvakavanzika nyika yekare. Zvatinosiita shoko kwatiri, kazhinji zvichiitika mabhuku yechikoro, "diamond" zvinobva rechiGiriki "dhiramu". MuGreece yekare, zviridzwa anogadzirwa kwemangoda serin'i kana mativi (kusiyana kune ano adaptations). Zvirokwazvo iwe wakaona kuti kadhi masutu - mangoda - ane rhombic chimiro. Paumbwe suit ichi anodzokera mazuva apo rwakapoteredza mangoda zvisina kushandiswa muupenyu hwezuva nezuva. Somugumisiro, nedhaimani - dangwe chaiye, yakanga yakagadzirwa nevanhu asati mumavhiri.

Kokutanga shoko akadai "diamond" rakashandiswa zvakadai unhu akakurumbira sezvo Geron uye Papa Alexandria.

ehupfumi ane rhombus

1. Sezvo rhombus mativi pakatarisana mumwe uye vari kungoreva dzakafanana, kuti rhombus hapana mubvunzo parallelogram (AB || CD, AD || BC).
2. Rhombic vari Tsanga yacho yaichekwa kuyambuka kuruoko pamakona (AC ⊥ BD), uye nokudaro perpendicular. Somugumisiro, mharadzano rinokamukana iri hafu Tsanga yacho yaichekwa.
3. Bisectors rhombic rhombus pamakona vari Tsanga yacho yaichekwa (∠DCA = ∠BCA, ∠ABD = ∠CBD uye t. D.).
4. Kuzivikanwa parallelograms kuti vakaverenga dzinoungana vanhu diagonals ane rhombus inhamba panhivi square, izvo kane 4.

Zviratidzo ane rhombus

Rhombus vaya vanenge chinhu parallelogram rinonangana zvinotevera ezvinhu:

1. mativi ose ane parallelogram vakaenzana.
2. The diagonals of rhombus piringisha kurudyi pamakona, i.e. vane perpendicular noruremekedzo mumwe (AC⊥BD). Izvi zvinoratidza kuti kutonga kumativi matatu (mativi vakaenzana uye chiri panzvimbo necheparutivi rworwendo 90).
3. parallelogram Tsanga yacho yaichekwa vakaparadzana makona zvakaenzana, nokuti mativi vakaenzana.

The nharaunda rhombus

Nharaunda rhombus zvinogona vakaverenga pachishandiswa akawanda Masvomhu (zvichienderana zvinhu inopiwa iri dambudziko). Next, verenga pamusoro chii kunharaunda rhombus.

1. Nzvimbo rhombus akaenzana nokuwanda chiri hafu kungoerekana diagonals ayo.
2. Sezvo nedhaimani - imwe mhando parallelogram, rhombus ari (S) inhamba basa nzvimbo divi rimwe parallelogram pamusoro kukwirira kwayo (h).
3. Uyezve, rhombus nzvimbo inogona dzaona ne nzira yemaitiro unova zvibereko mativi mana akaenzana kumativi ari rhombus Sine pakati pakona. Sine of angled - Arifa - pakona iri pakati anokonzera rhombus mumativi.
4. Zvinogamuchirika kuti zvakarurama zvingaitwa vaiona payakavakirwa unova chibereko kaviri rekona Arufa nharaunda yacho incircle (R).

Masvomhu aya, unogona kuverenga uye kuratidza pahwaro ari Pythagorean theorem no nemitemo kumativi matatu. mienzaniso yakawanda yaitaura kunobatanidza Masvomhu anoverengeka rimwe basa.