Brooki8espidgy Brooki8espidgy

18-06-2016
Mathematics

contestada

A wheel has a radius of 15 cm. Approximately how far does it travel in 4 revolutions?

47.1 cm

94.2 cm

188.4 cm

376.8 cm

Respuesta :

Greenrune113 Greenrune113

18-06-2016

Radius is 15 cm
Circumference = 2 pi r
C = 2 x 3.14 x 15cm
C = 94.2 cm
94.2 cm x 4 (revolutions) = 376.8 = D

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