PARALEL TO’G’RI CHIZIQLAR
PARALEL TO’G’RI CHIZIQLAR
в а с 1 2 3 4 5 6 7 8To’g’ri k eluv chi t asdiqlarni t oping 1. < 5 и < 8 – vertikla 2. < 6 и < 2 – bir tomonlama 3. < 7 и < 3 – mos keluvchi 4. < 3 и < 4 – Qo’shni tomonlar 5. < 1 и < 8 – tashqi bir tomonli 6. < 4 и < 6 – ichki almashinuvchi 7. < 5 и < 4 – ichki bir tomonli 8. < 6 и < 2 – mos burchaklar 9. < 2 и < 7 – vertikla burchaklar 1 2 3 4 5 6 7 8 9 Ha Yo’q Ha Yo’q ha ha ha ha ha
а с 1 2 3 4 5 6 7 8вa||b bo’lsa quy idagi t asdiqlarning qay si biri t o’g’ri ? 1. < 3 = < 6 ha 2. < 6 = < 7 Yo’q 3. < 4 = < 8 Ha 4. < 3 + < 5 = 180 0 Yo’q 5. < 7 + < 8 = 180 0 Yo’q 6. < 1 = < 8 Ha
a||b , Shu burchaklarni toping . 1 2 3 4 а в
1 , 2, 3 - burchak larni t oping а в с d 110 0 70 0 140 0 1 2 3 Javob : < 1 = < 2 = 40 0 < 3 = 140 0