Jawaban:
A
Penjelasan dengan langkah-langkah:
r = 10 cm
d = 2 × r
d = 2 × 10
d = 20 cm
K = ¾ × pi × d + 2 × r
K = ¾ × 3,14 × 20 + 20
K = 67,1 cm
[tex]\colorbox{r}{ \color{orange}{\boxed{\mathfrak{rumus : }}}}[/tex]
[tex]\underline{\boxed {\tt{\red{k = \pi \times d}}}}[/tex]
Contoh soal :
Sebuah lingkaran memiliki diameter 14 cm. hitunglah keliling lingkaran tersebut
[tex] \sf = \frac{22}{7} \times 14[/tex]
[tex] \sf = \frac{22}{ \cancel{7}} \times \cancel{14}[/tex]
[tex] = \underline{\boxed {\tt{\red{44}}}}[/tex]
[tex] \\ [/tex]
[tex]\underline{\boxed {\tt{\red{l = \pi \times {r}^{2} }}}}[/tex]
Sebuah lingkaran memiliki jari-jari 10 cm. hitunglah luas lingkaran tersebut
[tex] \sf = 3.14 \times {10}^{2} [/tex]
[tex] \sf = 3.14 \times 100[/tex]
[tex] = \underline{\boxed {\tt{\red{314}}}}[/tex]
[tex] \sf = \frac{3}{4} \times 3.14 \times (2 \times 10)[/tex]
[tex] \sf = \frac{3}{4} \times 3.14 \times 20[/tex]
[tex] \sf = \frac{3}{ \cancel{4}} \times 3.14 \times \cancel{20}[/tex]
[tex] \sf = 3 \times 3.14 \times 5[/tex]
[tex] \sf = 15 \times 3.14[/tex]
[tex] = \underline{\boxed {\tt{\red{47.1}}}}[/tex]
#BelajarBersamaBrainly
Koreksi
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Jawaban:
A
Penjelasan dengan langkah-langkah:
r = 10 cm
d = 2 × r
d = 2 × 10
d = 20 cm
K = ¾ × pi × d + 2 × r
K = ¾ × 3,14 × 20 + 20
K = 67,1 cm
Penjelasan dengan langkah-langkah:
Pᥱmbαhαsαᥒ :
[tex]\colorbox{r}{ \color{orange}{\boxed{\mathfrak{rumus : }}}}[/tex]
[tex]\underline{\boxed {\tt{\red{k = \pi \times d}}}}[/tex]
Contoh soal :
Sebuah lingkaran memiliki diameter 14 cm. hitunglah keliling lingkaran tersebut
[tex] \sf = \frac{22}{7} \times 14[/tex]
[tex] \sf = \frac{22}{ \cancel{7}} \times \cancel{14}[/tex]
[tex] = \underline{\boxed {\tt{\red{44}}}}[/tex]
[tex] \\ [/tex]
[tex]\underline{\boxed {\tt{\red{l = \pi \times {r}^{2} }}}}[/tex]
Contoh soal :
Sebuah lingkaran memiliki jari-jari 10 cm. hitunglah luas lingkaran tersebut
[tex] \sf = 3.14 \times {10}^{2} [/tex]
[tex] \sf = 3.14 \times 100[/tex]
[tex] = \underline{\boxed {\tt{\red{314}}}}[/tex]
[tex] \\ [/tex]
Pᥱᥒᥡᥱlᥱsαiαᥒ :
[tex] \sf = \frac{3}{4} \times 3.14 \times (2 \times 10)[/tex]
[tex] \sf = \frac{3}{4} \times 3.14 \times 20[/tex]
[tex] \sf = \frac{3}{ \cancel{4}} \times 3.14 \times \cancel{20}[/tex]
[tex] \sf = 3 \times 3.14 \times 5[/tex]
[tex] \sf = 15 \times 3.14[/tex]
[tex] = \underline{\boxed {\tt{\red{47.1}}}}[/tex]
#BelajarBersamaBrainly
Koreksi