a. 427,04 cm²
b. 1004,8 cm²
Diketahui:
d = 16 cm
r = 16/2 = 8 cm
t = 15 cm
Ditanya:
a. Luas Selimut
b. Luas Permukaan
Jawab:
a. Luas selimut
= πrs
[tex] = 3.14 \times 8 \times \sqrt{ {t}^{2} + {r}^{2} } [/tex]
[tex] = 25.12 \times \sqrt{ {15}^{2} + {8}^{2} } [/tex]
[tex] = 25.12 \times \sqrt{225 + 64} [/tex]
[tex] = 25.12 \times \sqrt{289} [/tex]
[tex] = 25.12 \times 17[/tex]
[tex] = 427.04 \: \: {cm}^{2} [/tex]
[tex] = \frac{1}{3} \times \pi \times {r}^{2} \times t[/tex]
[tex] = \frac{1}{3} \times 3.14 \times {8}^{2} \times 15[/tex]
[tex] = 1 \times 3.14 \times 64 \times 5[/tex]
[tex] = 1004.8 \: \: {cm}^{2} [/tex]
•#Like, follow, dan jadikan jawaban tercerdas#•
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Jawaban:
a. 427,04 cm²
b. 1004,8 cm²
Langkah penyelesaian:
Diketahui:
d = 16 cm
r = 16/2 = 8 cm
t = 15 cm
Ditanya:
a. Luas Selimut
b. Luas Permukaan
Jawab:
a. Luas selimut
= πrs
[tex] = 3.14 \times 8 \times \sqrt{ {t}^{2} + {r}^{2} } [/tex]
[tex] = 25.12 \times \sqrt{ {15}^{2} + {8}^{2} } [/tex]
[tex] = 25.12 \times \sqrt{225 + 64} [/tex]
[tex] = 25.12 \times \sqrt{289} [/tex]
[tex] = 25.12 \times 17[/tex]
[tex] = 427.04 \: \: {cm}^{2} [/tex]
b. Luas Permukaan
[tex] = \frac{1}{3} \times \pi \times {r}^{2} \times t[/tex]
[tex] = \frac{1}{3} \times 3.14 \times {8}^{2} \times 15[/tex]
[tex] = \frac{1}{3} \times 3.14 \times {8}^{2} \times 15[/tex]
[tex] = 1 \times 3.14 \times 64 \times 5[/tex]
[tex] = 1004.8 \: \: {cm}^{2} [/tex]
•#SEMOGA MEMBANTU#•
•#Like, follow, dan jadikan jawaban tercerdas#•