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Answer 1

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Jawaban:

a. LP = 1.068 cm²

V = 502 cm³

b. LP = 1.772 cm²

V = 880 cm³

c. LP = 2.728 cm²

V = 1.408 cm³

d. LP = 2.577 cm²

V = 880 cm³

e. LP = 4.224 cm²

V = 1.609 cm³

Penjelasan dengan langkah-langkah:

A. Luas Permukaan Kerucut :

Lp = π × r × (r + s)

Lp = 22/7 × 10 × (10 + 24)

Lp = 22/7 × 10 × (34)

Lp = 22/7 × 340

Lp = 1.068 cm²

Volume Kerucut :

V = ⅓ × π × r × r × t

V = ⅓ × 22/7 × (10 + 10) × 24

V = ⅓ × 22/7 × (20) × 24

V = ⅓ × 22/7 × 480

V = 502 cm³

B. Luas Permukaan Kerucut :

Lp = π × r × (r + s)

Lp = 22/7 × 12 × (12 + 35)

Lp = 22/7 × 12 × (47)

Lp = 22/7 × 564

Lp = 1.772 cm²

Volume Kerucut :

V = ⅓ × π × r × r × t

V = ⅓ × 22/7 × (12 + 12) × 35

V = ⅓ × 22/7 × (24) × 35

V = ⅓ × 22/7 × 840

V = 880 cm³

C. Luas Permukaan Kerucut :

Lp = π × r × (r + s)

Lp = 22/7 × 14 × (14 + 48)

Lp = 22/7 × 14 × (62)

Lp = 22/7 × 868

Lp = 2.728 cm²

Volume Kerucut :

V = ⅓ × π × r × r × t

V = ⅓ × 22/7 × (14 + 14) × 48

V = ⅓ × 22/7 × (28) × 48

V = ⅓ × 22/7 × 1.344

V = 1.408 cm³

D. Luas Permukaan Kerucut :

Lp = π × r × (r + s)

Lp = 22/7 × 20 × (20 + 21)

Lp = 22/7 × 20 × (41)

Lp = 22/7 × 820

Lp = 2.577 cm²

Volume Kerucut :

V = ⅓ × π × r × r × t

V = ⅓ × 22/7 × (20 + 20) × 21

V = ⅓ × 22/7 × (40) × 21

V = ⅓ × 22/7 × 840

V = 880 cm³

E. Luas Permukaan Kerucut :

Lp = π × r × (r + s)

Lp = 22/7 × 24 × (24 + 32)

Lp = 22/7 × 24 × (56)

Lp = 22/7 × 1.344

Lp = 4.224 cm²

Volume Kerucut :

V = ⅓ × π × r × r × t

V = ⅓ × 22/7 × (24 + 24) × 32

V = ⅓ × 22/7 × (48) × 32

V = ⅓ × 22/7 × 1.536

V = 1.609 cm³

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