The curved surface area (in mathrmcm2 ) of a cone frustum whose slant height is 14 mathrm~cm and the top and bottom radii are 12 mathrm~cm and 8 mathrm~cm, respectively is

Question

The curved surface area (in mathrmcm2 ) of a cone frustum whose slant height is 14 mathrm~cm and the top and bottom radii are 12 mathrm~cm and 8 mathrm~cm, respectively is  (A)  (B)  (C)  (D)

Tardigrade Admin · Accepted Answer

The curved surface area of a cone =π(R+r) l Given: R=12, r=8, and l=14 operatornameCSA=π(12+8)(14)=880 π mathrmcm2

Q. The curved surface area (in $cm^{2}$ ) of a cone frustum whose slant height is $14 cm$ and the top and bottom radii are $12 cm$ and $8 cm$ , respectively is ___

The curved surface area of a cone $= π (R + r) l$
Given: $R = 12, r = 8$ , and $l = 14$
$CSA = π (12 + 8) (14) = 880 π cm^{2}$

Q. The curved surface area (in cm2 ) of a cone frustum whose slant height is 14 cm and the top and bottom radii are 12 cm and 8 cm, respectively is ___

The curved surface area of a cone =π(R+r)l Given: R=12,r=8, and l=14 CSA=π(12+8)(14)=880πcm2

Q. The curved surface area (in $cm^{2}$ ) of a cone frustum whose slant height is $14 cm$ and the top and bottom radii are $12 cm$ and $8 cm$ , respectively is ___

The curved surface area of a cone $= π (R + r) l$
Given: $R = 12, r = 8$ , and $l = 14$
$CSA = π (12 + 8) (14) = 880 π cm^{2}$