shbriaanderson1883 shbriaanderson1883

09-04-2018
World Languages

contestada

Qual o comprimento do arco 65°vem circunferência de raio 7 cm

Respuesta :

szwangyuliang szwangyuliang

11-04-2018

a fórmula que te dá o comprimento da circunferência é:

2*pi*r

onde r é o raio.

Assim, uma circunferência de raio 7cm tem:

2*pi*7

ou

2*3.14*7 =
43.96 cm

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