Question

33,34 tolong pakai caranya...

Answer 1

Verified answer

Kelas 8 Matematika
Bab Bangun Ruang

33] d2 = 2 . √(s² - (1/2 . d1)²)
d2 = 2 . √(13² - (1/2 . 10)²)
d2 = 2 . √(169 - 25)
d2 = 2. 12 cm
d2 = 24 cm

Volume prisma
= 1/2 x d1 x d2 x t
= 1/2 x 24 . 10 . 15
= 1.800 cm³

34] 1,6 m = 16 dm
70 cm = 7 dm

Volume tabung 
= 1/4 . π . d . d . t
= 1/4 . 22/7 . 7 . 7 . 16
= 616 dm³
= 616 liter

Waktu 
= volume/debit
= 616 liter/(8 liter/menit)
= 77 menit
= 1 jam 17 menit