Malangizo ogwiritsidwa ntchito: lowetsani utali wa miyendo iwiri mu fomu yowerengera, kenako dinani batani “Werengetsani”. Zotsatira zake, dera lachiwerengero lidzawerengedwa.
Njira yowerengera
Area S wa makona atatu akumanja ndi theka la zotuluka za miyendo yake iwiri.