Muchidzidzo chePimanyika, taramunyongo (Radius) izwi rinoreva mutsetse unobatanidza goko redenderedzwa nemuganhu wedenderedzwa; taramunyongo ndiyo inotara panogumira denderedzwa. Muganhu wedenderedzwa une nhambwe dzakafanana panzvimbo dzose zvichibva pakati (centre) pedenderedzwa. Izwi iri rinoshandiswazve kutsanangudza mutsetse unobatanidza goko reurungano, neuso hweurungano - uso hweurungano hune nhambwe dzakaenzana panzvimbo dzose kubva pakati.