I chorak algebra – sinf – nazorat ishi Yozma ish I variant

6 - nazorat ishi

I variant

1. Katetlari 9 va 12 bo‘lgan to‘gri burchakli uchburchakka tashqi chizilgan aylananing uzunlini toping.

2. Gradus o‘lchovi va radiusi 6 sm bo‘lgan aylana yoyining uzunligini toping.

3. Temir yo‘l polotnosining egilish radiusi 4 km, egilish yoyining uzunligi –

392,5 m. Egilish yoyining gradus o‘lchovini toping.

4. Tomoni 6 sm bo‘lgan teng tomonli uchburchakka ichki chizilgan doiraning yuzini toping.

II variant

1. Katetlari 24 va 7 bo‘lgan to‘gri burchakli uchburchakka tashqi chizilgan aylananing uzunlini toping.

2. Gradus o‘lchovi va radiusi 6 sm bo‘lgan aylana yoyining uzunligini toping.

3. Temir yo’l polotnosining egilish radiusi 5km, egilish yoyining uzunligi –

400 m. Egilish yoyining gradus o‘lchovini toping.

4. Tomoni 9 sm bo‘lgan teng tomonli uchburchakka ichki chizilgan doiraning yuzini toping.