Denderedzwa

Muchidzidzo chePimanyika, denderedzwa (circle kuEnglish) chiumbwa chine munyonya wakavharika panzvimbo dzose uye munyonga une nhambwe dzakaenzana panzvimbo dzose zvichibva pakati (centre) redenderedzwa racho. Nhambwe kubva pakati kusvika nemuganhu wedenderedzwa inodanwa kunzi taramunyongo, (radius kuEnglish).

Denderedzigama ndiro rinonzi semi-circle kuEnglish.

Bandiko (Sector) - iri izwi rinoreva nzvimbo iri pakati pemutaro miviri (radii) yakanyorwa kubva pakati pedenderedzwa kuenda pazvimiso zviviri zvakasiyana zviri pamuganhu wedenderedzwa.

Mburungwagama ndiyo inonzi hemisphere kuEnglish.

Nhambwe yemuganhu wedenderedzwa

Muganhu we denderedzwa une nhambwe inopiwa netsazaniso inoti

Pimamuganhu, P = 2πR = πD

Apa π igovano yePimamuganhu neDiameter yeDenderedzwa, R ndiyo taramunyongo yedenderedzwa, D ndiyo Diamater yedenderedzwa. Govano inonzi π, inoda kuyenzana na (22/7) kana kuti 3.14159 nekumwe kunyora.

Nharaunda yeDenderedzwa

Nharaunda rwuri mukati medenderedzwa runowanikwa netsazaniso inoti:

Nharaunda, A = πR² = (πD⁴)/4