401: The Extraordinary Story of the Man who Ran 401 Marathons in 401 Days and Changed His Life Fore

401: The Extraordinary Story of the Man who Ran 401 Marathons in 401 Days and Changed His Life Fore

Matematika tentukan panjang diameter lingkaran yang panjang jari jarinya 25cm​

tentukan panjang diameter lingkaran yang panjang jari jarinya 25cm​

Penyelesaian soal :

Jari" = 25 cm

[tex] \sf r = \frac{diameter}{2} [/tex]

[tex] \sf r = \frac{25}{2} [/tex]

[tex] \sf r = 12.5 \: cm[/tex]

- Zaveira -

Jawaban:

50 cm

Ukuran diameter lingkaran adalah 2 kali ukuran jari-jari.

D = 2 x r

D = 2 x 25 cm

D = 50 cm

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