Gonyonhatu yakarurama

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Muchidzidzo chePimanyika, gonyonhatu yakarurama (right-angled triangle) imhando yegonyonhatu ine mativi maviri anosangana pamukwava une gonyo rakakura 90o. Nokumwe kutaura gonyonhatu yemutwi inodaidzwa kunzi gonyonhatu yemutwi, izvi zvichidudza gonyo re 90o rainaro.

Mativi matatu egonyonhatu iri anopiwa mazita akasiyana zvichibva pamamiriro akaita gonyonhatu. Kune mativi maviri anosvika pamukwava une gonyo ye 90o; pamativi aya rokutanga rikanzi remuny'asi (adjacent), repiri richabva ranzi darisanwa (opposite side). Divi guru rine nhambwe yakareba kupfura mamwe rinonzi muzendami (hypotenuse) nokuti rinoita sokunge rakazendamiswa rakatsigirwa kuhwaro nemutwi.

Sarudzo yokuti darisanwa idivi ripi uye remuny'asi idivi ripi inodudzirwa nokuti timire mugonyo ripi. Muzendami ndiye murefu anoramba aine zita rimwechete - uyu haachinje. Divi rakabatana negonyo ratiri kushanda naro ndiro rinova remuny'asi, repiri rakaita mutwi nedivi remuny'asi ndiro rinova darisanwa. Zvizhinji zvichatsanangurwa muchikamu chePimagonyonhatu, (trigonometry) chichatevera mberi.