Respuesta :

helpmewithmaaath
The formula is [tex] \pi rs+ \pi r^{2} [/tex], where s is slant height.

so,
= 3.14X4X7+3.14X[tex] 4^{2} [/tex]
= 87.92+50.24
= 138.16[tex] cm^{2} [/tex]
ircuthbert
There is a rounding error... So 138.16 cm^2 is the answer
Ver imagen ircuthbert