Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Passage: Imwe yemipiro inokosha zvikuru yaParameshvara yakanga iri nzira yake yemhando yemutengo wepakati wekupindirana kweiyo sine. Akanga ari nyanzvi yemasvomhu yekutanga kupa nharaunda yedenderedzwa ine quadrilateral yakanyorwa. Dzimwe nguva kutaura kwacho kunonzi kwakaitwa naLhuilier (1782), makore 350 gare gare. Nemativi echikamu chechina chechikamu chiri a, b, c, uye d, nharaunda R yedenderedzwa rakapoteredzwa iri:  Mubvunzo: ndiani akawana nharaunda?
Lhuilier