Question

itu udh ak jawab tapi salah, beri jawabannya yang benar dong kak. Yang jawab ngasal aku laporkan + blok tq​

Answer 1

Penjelasan dengan langkah-langkah:

1. kerucut

r = 9

t = 40

s = V402 + 9^2 = V481 = 41

luas permukaan = alas + selimut

= (phi x r^2 ) + phi x r x s

= phi. r^2 + phi. r.s

= phi. r (r + s)

= 3,14 × 9 × (9+41)

= 3,14 × 9 x 50

= 3,14 × 450

= ........... ( kalkulasi sendiri yya )

2. kerucut

t = 12

d = 28

r = 1/2 d = 1/2 × 28 = 14

volume = 1/3 × phi x r^2 × t

= 1/3 × 22/7 × 14 x 14 x 12

= 22 x 2 x 14 x 4

= 44 x 56

= ........ dihitung sendiri ..