hitunglah volume kerucut yang berjari jari alas 21 cm dan tinggi 30 cm

r = 21 cm
t = 30 cm

Volume kerucut
= 1/3 x π x r² x t
= 1/3 x 22/7 x 21 cm x 21 cm x 30 cm
= 13.860 cm³

volume kerucut
= ⅓ x Luas alas x tinggi
= ⅓ x π x r² x t
= ⅓ x ²²/7 x 21 cm x 21 cm x 30cm
= ⅓ x 22 x 3 cm x 21 cm x 30 cm
= ⅓ x 83.160 cm³
= 27.720 cm³

semoga membantu