Question

yang bisa, di follow

1. tentukan volume bola tersebut !
jari jari : 7 cm

2. sebuah bola memiliki volume 14.130 cm³.tentukan panjang jari jari bola tersebut !

selamat mengerjakan ~
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Answer 1

Verified answer

Penjelasan dengan langkah-langkah:

1. r = 7 cm

volume

= 4/3 x π x r³

= 4/3 x 22/7 x 7 x 7 x 7

= 4/3 x 1.078

= 1.437,33 cm³

2. v = 14.130 cm³

v = 4/3 x π x r³

14.130 = 4/3 x 314/100 x r³

14.130 x 100 x 3 = 4 x 314 x r³

4.239.000 = 1.256 r³

r³ = 4.239.000 : 1.256

r³ = 3.375

r = ³√3.375

r = 15 cm

Answer 2

1. Volume bola

V = 4/3 × πr³

V = 4/3 × 22/7 × 7 × 7 × 7

V = 4/3 × 22 × 7 × 7

V = 4/3 × 154 × 7

V = 4/3 × 1.078

V = 4.312/3

V = 1.473,33 cm³

2. jari jari bola

V = 4/3 × πr³

14.130 = 4/3 × 3,14 × r³

r = ³√(14.130 ÷ 4/3 × 3,14)

r = ³√(14.130 ÷ 12,56/3)

r = ³√(14.130 × 3/12,56)

r = ³√(42.390/12,56)

r = ³√3.375

r = 15 cm