Sekhutlo se nepahetseng ke eng

Khatisong ena, re tla hlahloba hore na angle e nepahetseng ke efe, re thathamise libopeho tse kholo tsa geometri tseo e hlahang ho tsona, hape re hlahlobe mohlala oa bothata tabeng ena.

Tlhaloso ea sekhutlo se nepahetseng

Angle ke otlolohilenghaeba e lekana le likhato tse 90.

Litšoantšong, ha ho na arc e pota-potileng e sebelisetsoang ho bontša angle e joalo, empa e le lisekoere.

Lekhutlo le letona ke halofo ea angle e otlolohileng (180°) 'me ka li-radians e lekana le Π / 2.

Libopeho tse nang le li-angles tse nepahetseng

1. Sekwere - rhombus, li-angles tsohle tse lekanang le 90 °.

2. Rectangle - parallelogram, eo likhutlo tsohle tsa eona le tsona li nepahetseng.

3. khutlotharo e nepahetseng ke e 'ngoe ea li-angles tsa eona tse nepahetseng.

4. Rectangular trapezoid - bonyane e 'ngoe ea li-angles ke 90 °.

Mohlala oa bothata

Hoa tsebahala hore ka triangolo e 'ngoe ea li-angles e nepahetse,' me tse ling tse peli li lekana. A re fumaneng litekanyetso tse sa tsejoeng.

tharollo

Joalokaha re tseba ho tloha , e lekana le 180 °.

Ka hona, li-angles tse peli tse sa tsejoeng li nka 90 ° (180° – 90°). Kahoo e 'ngoe le e' ngoe ea tsona e lekana le 45 ° (90° : 2).