Question

Tolong bantu jawab yaa​

Answer 1

Jari-jari = 5 cm

Tinggi tabung (tb) = 8 cm

Tinggi kerucut (tk) = √(13²-5²) = √(169-25) = √144 = 12 cm

π = 3,14

Volume tabung (Vb)

Vb = π x r² x tb

Vb = 3,14 x 5² x 8

Vb = 3,14 x 25 x 8

Vb = 3,14 x 200

Vb = 628 cm³

Volume kerucut (Vk)

Vk = 1/3 x π x r² x tk

Vk = 1/3 x 3,14 x 5² x 12

Vk = 3,14 x 25 x 4

Vk = 3,14 x 100

Vk = 314 cm³

Volume gabungan (V):

V = Vb + Vk = 628 + 314 = 942 cm³