**Q8: **

Find, to the nearest tenth, the lateral area of a cone with a diameter of 40 centimeters and a slant height of 29 centimeters.

**Q9: **

Find the surface area of the given cone to the nearest tenth.

**Q10: **

is an equilateral triangle of side length . Given that it turned one complete revolution about , determine the lateral area of the solid generated by the rotation in terms of and .

- A
- B
- C
- D
- E

**Q11: **

A conical lampshade is 31 cm high and has a base of circumference 145.2 cm. Find its surface area to the nearest square centimeter.

- A
2β251 cm
^{2} - B
5β614 cm
^{2} - C
826 cm
^{2} - D
2β807 cm
^{2} - E
4β501 cm
^{2}

**Q12: **

Find, to the nearest tenth, the surface area of a cone with an altitude of 76 feet and a slant height of 95 feet.

**Q13: **

Two similar cones have radii of 5 millimeters and 10 millimeters. What is the ratio of the surface area of the small cone to the surface area of the large one?

- A
- B4
- C2
- D

**Q14: **

Two similar cones have radii of 7 millimeters and 22 millimeters. What is the ratio of the surface area of the small cone to the surface area of the large one?

- A
- B
- C
- D
- E

**Q15: **

Two similar cones have radii of 13 millimeters and 26 millimeters. What is the ratio of the surface area of the small cone to the surface area of the large one?

- A
- B4
- C2
- D

**Q16: **

A right cone has slant height 35 cm
and surface area cm^{2}.
What is the radius of its base?

**Q17: **

A right cone has slant height 39 cm
and surface area cm^{2}.
What is the radius of its base?

**Q18: **

Find, in terms of , the lateral area of a right cone with base radius 9 cm and height 13 cm.

- A
cm
^{2} - B
cm
^{2} - C
cm
^{2} - D
cm
^{2}

**Q19: **

Find, in terms of , the lateral area of a right cone with base radius 16 cm and height 14 cm.

- A
cm
^{2} - B
cm
^{2} - C
cm
^{2} - D
cm
^{2}

**Q20: **

Given that the height of the shown cone is 88 cm, and , determine the surface area of the cone in terms of .

- A
cm
^{2} - B
cm
^{2} - C
cm
^{2} - D
cm
^{2}

**Q21: **

Given that the height of the shown cone is 92 cm, and , determine the surface area of the cone in terms of .

- A
cm
^{2} - B
cm
^{2} - C
cm
^{2} - D
cm
^{2}

**Q22: **

Find, to the nearest hundredth, the total surface area of the given cone.

**Q23: **

Find, to the nearest hundredth, the total surface area of the given cone.

**Q24: **

Find, to the nearest tenth, the surface area of this cone.

**Q25: **

Find the total surface area of the right cone approximated to the nearest two decimal places.