Question

Q.

Tentukan luas permukaan bola yang memiliki diameter 24 cm!​

Answer 1

Panjang jari-jari:r = d ÷ 2r = 24 cm ÷ 2r = 12 cmMaka,Luas Permukaan:lp = 4 × πr²lp = 4 × 3,14 × 12 cm²lp = 4 × 3,14 × 12 cm × 12 cmlp = 4 × 3,14 × 144 cmlp = 4 × 452,16 cmlp = 1.808,64 cm²Papay-![tex]\huge\tt\color{FF6666}{@}\color{FFB266}{I}\color{B2FF66}{t}\color{66FF66}{x}\color{66FFFF}{A}\color{66B2FF}{l}\color{6666FF}{v}\color{B266FF}{y}[/tex]

Answer 2

Penjelasan dengan langkah-langkah:Rumus mencari Jari - jari =r = d/2r = 24/2r = 12Lp = 4 × π × r²Lp = 4 × 3,14 × 12²Lp = 4 × 3,14 × 144Lp = 4 × 452,16 Lp = 1.808,64 cm²