Jwb ya yg bnr jan ngasal

Jwb ya yg bnr jan ngasal

Jawaban:

Luas Permukaan Bola:

L = 4 × π × r²

L = 4 × $frac{22}{7}$ × 25²

L = 4 × $frac{22}{7}$ × 625

L = 7.857 cm²

Luas Permukaan Tabung:

L = 2 × π × r × (r + t)

L = 2 × $frac{22}{7}$ × 25 × (25 + 14)

L = 2 × $frac{22}{7}$ × 25 × 39

L = 6.128 cm²

Luas Permukaan Gabungan:

= 7.857 cm² + 6.128 cm²

= 13.985 cm²