Question : The radius of a sphere is 3.5 cm. What is the total surface area of the sphere?

Option 1: 154 cm²

Option 2: 77 cm²

Option 3: 231 cm²

Option 4: 188 cm²

Question : The diameter of a sphere is 14 cm, then the volume of this sphere is (use $\pi=\frac{22}{7}$ ):

Option 1: $1437 \frac{1}{3} \mathrm{~cm}^3$

Option 2: $1683 \frac{1}{3} \mathrm{~cm}^3$

Option 3: $1521 \frac{2}{3} \mathrm{~cm}^3$

Option 4: $2125 \frac{1}{3} \mathrm{~cm}^3$

Question : If the radius of a sphere is increased by 2 cm, then its surface area increases by 352 cm². The radius of the sphere initially was: (use $\pi =\frac{22}{7}$)

Option 1: 4 cm

Option 2: 5 cm

Option 3: 3 cm

Option 4: 6 cm

Question : If the total surface area of a cube is 96 cm², its volume is:

Option 1: 56 cm³

Option 2: 16 cm³

Option 3: 64 cm³

Option 4: 36 cm³

Question : If the volume of a cube is 729 cm³, then find the total surface area of the cube.

Option 1: 484 cm²

Option 2: 482 cm²

Option 3: 488 cm²

Option 4: 486 cm²