a) volume kerucut yang terpacung

dit : a.volume kerucut =...
b.LP kerucut=...
c.LP kerucut la 21 cm

jawab :

s²=r²+t²=8² + 24² = 64 + 276 = √640 = 25.298

V kerucut = ⅓ x π r² t
= ⅓ x 22/7 x 7 x 24
= ⅓ x 22 x 24
= 22 x 8
= 176 cm³

Lp kerucut = π ( r + s )
= 22/7 x 7 ( 7 + 25.298 cm )
=556.556 cm

Lp kerucut = ( Ia = 21 cm )
= La x Ls
= 21 x 556.556
= 11,687.676 cm²

NTAR KU CARI YG { B }