Question

ayúdenme porfavor es para hoy les doy coronita
.
explicación paso a paso​

Answer 1

Respuesta:

d = 6 cm        At = 226,2   $cm^{2}$

Explicación paso a paso:

v = 423,9 $cm^{3}$

$cm^{3} h = 15 cm\\r = ? d = ? At = ?\\V = pi.r^{2}.h r = \sqrt{V/(pi.h)}\\r = \sqrt{423cm^{3}/(3.1416)(15 cm) }\\r = \sqrt{(423,9 / 47,124) cm^{2} } = \sqrt{9 cm^{2} } \\r = 3 cm \\ d = 2r \\ d = 2.3 cm \\ d = 6 cm$

At = 2. pi. r . (h - r)

At = 2(3,1416)(3 cm)(15 cm - 3  cm)

At = (18,85  cm)(12  cm)

At = 226,2  $cm^{2}$