Jawab:
Volume ≈ 5800 ⅔ cm³ ✅
Luas . . . ≈ 1958 cm² ✅

Penjelasan dengan langkah-langkah:

Diketahui:
π ≈ ²²/₇
jari-jari (r) = 7 cm
tinggi kerucut (h) = 24 cm
tinggi tabung (t) = 25 cm

Cari pelukis (s)
s² = r² + h²
s² = 7² + 24²
s² = 49 + 576
s² = 625
s = √625
s = 25 cm
pelukis (s) = 25 cm

Dicari: (a.) Volume
Volume =
kerucut + tabung + ½bola =
π×r²×h×⅓ + π×r²×t + ½×(⁴/₃×π×r²×r) =
π × r² × ((h×⅓) + t + (⅔×r))
maka ≈
²²/₇ × 7² × ((²⁴/₃)+25+(⅔×7)) =
22 × 7 × (8+25+4+⅔) =
154 × (37+⅔) =
154 × (¹¹¹⁺⅔) =
154 × ¹¹³/₃ =
5800⅔ cm³
Volume ≈ 5800 ⅔ cm³ ✅

Dicari: (b.) Luas
Luas =
Kerucut + Tabung + ½bola =
π×r×s + 2×π×r×t + ½×4×π×r² =
π×r×s + 2×π×r×t + 2×π×r×r =
π×r×(s+(2×t)+(2×r)) =
π × r × (s+(2×(t+r)))
maka ≈
²²/₇ × 7 × (25+(2×(25+7))) ≈
22 × (25+(2×32)) ≈
22 × (25+64) ≈
22 × 89 ≈
1958 cm²
Luas ≈ 1958 cm² ✅

<(7o7)>