Question

To radius of a cone is 7cms and its slant is 10cms find c.s.a

Answer 1

$\mathsf{\huge{Answer}}$

$\bold{Given\:that,}$

Radius of the cone = 7cm

Slant height = 10cm

$\bold{To\:find,}$

C.S.A of the cone = ?

$\bold{By\:using\:the\:following\:formula,}$

C.S.A of the cone = πrl

C.S.A of the cone = $3.14 \times 7cm \times 10cm$

C.S.A of the cone = $3.14 \: \times 70cm^2$

C.S.A of the cone = $219.8cm^2$

$\bold{Therefore,\:the\:C.S.A\:of\:the\:cone\:is\:219.8cm^2}$