Geometrik shakllarning perimetri va yuzini hisoblashga doir masalalar — 9-sinf Geometriya test savollari

1.Asoslari 10 sm va 18 sm, balandligi 7 sm bo‘lgan trapetsiya yuzini toping.

• A)98 sm²
• B)126 sm²
• C)70 sm²
• D)49 sm²

2.Diagonallari 9 sm va 14 sm bo‘lgan romb yuzini toping.

• A)31,5 sm²
• B)63 sm²
• C)126 sm²
• D)23 sm²

3.Radiusi 6 sm bo‘lgan doiraning yarmini tashkil etuvchi sektor (yarim doira) yuzini toping (π ≈ 3,14).

• A)113,04 sm²
• B)37,68 sm²
• C)18,84 sm²
• D)56,52 sm²

4.Tomonlari 5 sm va 8 sm, ular orasidagi burchak 30° bo‘lgan parallelogramning yuzini toping.

• A)34,6 sm²
• B)13 sm²
• C)20 sm²
• D)40 sm²

5.Perimetri 24 sm bo‘lgan kvadratning yuzini toping.

• A)36 sm²
• B)144 sm²
• C)48 sm²
• D)24 sm²

6.Asosi 12 sm, balandligi 5 sm bo‘lgan uchburchak yuzini toping.

• A)60 sm²
• B)30 sm²
• C)17 sm²
• D)85 sm²

7.Tomonlari 7 sm va 9 sm bo‘lgan to‘g‘ri to‘rtburchak perimetrini toping.

• A)32 sm
• B)63 sm²
• C)28 sm
• D)16 sm

8.Radiusi 4 sm bo‘lgan doira yuzini toping (π ≈ 3,14).

• A)12,56 sm²
• B)100,48 sm²
• C)50,24 sm²
• D)25,12 sm²

9.Tomoni 6 sm bo‘lgan romb balandligi 4 sm. Romb yuzini toping.

• A)48 sm²
• B)20 sm²
• C)10 sm²
• D)24 sm²

10.Diagonali 10 sm bo‘lgan kvadrat yuzini toping.

• A)25 sm²
• B)100 sm²
• C)20 sm²
• D)50 sm²