Question : The volume of a solid hemisphere is 19,404 cm³. Its total surface area (in cm²) is:
(Take $\pi=\frac{22}{7}$)

Option 1: 2772

Option 2: 3465

Option 3: 2079

Option 4: 4158

Question : If the surface area of a sphere is $1386 \mathrm{~cm}^2$, then its volume is:
(Take $\pi=\frac{22}{7}$ )

Option 1: 8451 cm³

Option 2: 4851 cm³

Option 3: 5418 cm³

Option 4: 4581 cm³

Question : The curved surface area of a solid hemisphere is 22 cm². What is the total surface area of the hemisphere? (use $\pi=\frac{22}{7}$)

Option 1: 66 cm²

Option 2: 44 cm²

Option 3: 33 cm²

Option 4: 30 cm²

Question : The radius and height of a cylinder are in the ratio 4: 7 and its volume is 2816 cm³. Find its radius. (Take $\pi=\frac{22}{7}$ )

Option 1: 5 cm

Option 2: 7 cm

Option 3: 8 cm

Option 4: 6 cm

Question : The volume of a solid cylinder is 2002 cm³ and its height is 13 cm. What is the area (in cm²) of its base?
(Take $\pi=\frac{22}{7}$)

Option 1: 77

Option 2: 154

Option 3: 231

Option 4: 308