Surface Areas a...

The surface area of a frustum cone is 330 in2. The larger and smaller radius of the cone is 2.2 and 1in. Find its slant height. (Use $$\pi$$ = 3.14) 

The surface area of a frustum cone is 3,300 mm$$^2$$. The larger and smaller radius of the cone is 5 and 2 mm. find its slant height. (Use $$\pi$$ = 22/7)

Find the surface area of a frustum of cone, whose larger and smaller radius is 12 and 5 m. The slant height of the cone is 20 m.

The circumference of lower and upper bases of the frustum cone is 43 and 37 in. The slant height is 30 in. What is the curved surface area ?

The circumference of lower and upper bases of the frustum cone is 3.5 and 1.5 ft. The slant height is 5 ft. What is the curved surface area ?

The surface area of a frustum cone is 2,200 cm2. The larger and smaller radius of the cone is 20 and 10 cm. find its slant height. (Use $$\pi$$ = 22/7).

The circumference of lower and upper bases of the frustum cone is $$150$$ and $$20\ cm$$. The slant height is $$4.5\ cm$$. Find the curved surface area.

The circumference of lower and upper bases of the frustum cone is 13 and 27 mm. The slant height is 34 mm. What is the curved surface area ?

The circumference of lower and upper bases of the frustum cone is 0.12 and 0.5 m. The slant height is 0.45 m. What is the curved surface area ?

The circumference of lower and upper bases of the frustum cone is 10 and 20 cm. The slant height is 45 cm. What is the curved surface area ?