Penjelasan dengan langkah-langkah:
Jika panjang d lingkaran = 7 cm, maka panjang r lingkaran
= 7/2 = 3,5 cm
a. Volume tabung = π×r²×t
= 22/7×3,5×3,5×16
= 616 cm³
b. Luas permukaan tabung = 2×π×r×(r+t)
= 2×22/7×3,5×(3,5+16)
= 2×22/7×3,5×19,5
= 429 cm²
Semoga bermanfaat
Jawaban:
a. 616 cm³
b. 429 cm²
a.
V= luas alas × tinggi
= 1/4 × (7 cm)² × 22/7 × 16 cm
= 49 cm² × 22/7 × 4 cm
= 7 cm² × 22 × 4 cm
= 7 cm² × 88 cm
b.
Luas= keliling alas × tinggi+ 2 × luas alas
= 22/7 × 7 cm × 16 cm + 2 × 1/4 × 22/7 × (7 cm)²
= 22 cm × 16 cm + 11 × 7 cm²
= 352 cm² + 77 cm²
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Penjelasan dengan langkah-langkah:
Jika panjang d lingkaran = 7 cm, maka panjang r lingkaran
= 7/2 = 3,5 cm
a. Volume tabung = π×r²×t
= 22/7×3,5×3,5×16
= 616 cm³
b. Luas permukaan tabung = 2×π×r×(r+t)
= 2×22/7×3,5×(3,5+16)
= 2×22/7×3,5×19,5
= 429 cm²
Semoga bermanfaat
Jawaban:
a. 616 cm³
b. 429 cm²
Penjelasan dengan langkah-langkah:
a.
V= luas alas × tinggi
= 1/4 × (7 cm)² × 22/7 × 16 cm
= 49 cm² × 22/7 × 4 cm
= 7 cm² × 22 × 4 cm
= 7 cm² × 88 cm
= 616 cm³
b.
Luas= keliling alas × tinggi+ 2 × luas alas
= 22/7 × 7 cm × 16 cm + 2 × 1/4 × 22/7 × (7 cm)²
= 22 cm × 16 cm + 11 × 7 cm²
= 352 cm² + 77 cm²
= 429 cm²