diketahui keliling 440 cm dan pi 22/7, hitunglah diameter lingkaran

Halo, selamat pagi kawan :)
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Mapel : Matematika
Tentang : Bangun Datar
Pertanyaan yg diajukan : 1
Pembahasan :

Diketahui :
- Keliling (K) : 440 cm

Ditanya :
- Diameter (d)

Cara :

[tex]k = \pi \times d \\ \\ 440 = \frac{22}{7} \times d[/tex]

[tex]d = \frac{440}{ \frac{22}{7} } \\ \\ d = 440 \times \frac{7}{22} [/tex]

[tex]d = 20 \times 7 \\ \\ d = 140 \: cm[/tex]

Jadi, Diameter lingkaran tersebut adalah 140 cm

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Hopefully this is the best for you. And please, MAKE BRAINLY GREAT AGAIN!!!

✚ Heil Manstein! ✚

K = π . d
d = K / π
d = 440/22/7
d = 440 × 7/22
d = 20 × 7 = 140 cm