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Jari-jari sebuah roda 35cm. Roda itu berputar sebanyak 150 kali. Tentukan panjang lintasan roda tersebut dalam satuan meter! - Akreditasi.org

Jari-jari sebuah roda 35cm. Roda itu berputar sebanyak 150 kali. Tentukan panjang lintasan roda tersebut dalam satuan meter!

Akreditasi.org, Hai teman-teman, kali ini soal yang kita bahas tentang menentukan panjang lintasan roda dalam satuan meter. Berikut ini contoh soalnya ya teman-teman.

 

Soal:

Jari-jari sebuah roda 35cm. Roda itu berputar sebanyak 150 kali. Tentukan panjang lintasan roda tersebut dalam satuan meter!

 

Jawabannya adalah 330 m. 

 

Pembahasan:

Ingat rumus keliling lingkaran berikut ini. 

K = 2 x π x r, dengan π = 22/7 

Ingat juga bahwa 1 cm = 1/100 m. 

 

Diketahui: 

r = 35 cm 

Banyak putaran = 150 

Panjang lintasan roda = K lingkaran x banyak putaran 

= 2 x (22/7) x 35 x 150 

= 33000 cm 

= 33000 x (1/100) m 

= 330 m 

 

Jadi, panjang lintasan roda adalah 330 m.

 

Itulah pembahasan soal tersebut semoga bisa bermanfaat untuk teman-teman semua, terima kasih.

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